diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f9ec440..9ab1ba4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,6 +20,7 @@ jobs:
           python -m pip install --upgrade pip
           pip install -U setuptools
           pip install -r requirements.txt
+          pybabel compile -d zxcvbn/locale 
           pip install .
           pip install tox
       - name: Run mypy
diff --git a/.gitignore b/.gitignore
index 4ff21aa..57e9c23 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,5 @@ dist
 build
 zxcvbn*.egg-info
 .vscode
+*.mo
+.tox
\ No newline at end of file
diff --git a/MANIFEST.in b/MANIFEST.in
index 42eb410..22b297a 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1 +1,4 @@
 include LICENSE.txt
+recursive-include zxcvbn/locale *.mo
+recursive-include zxcvbn/locale *.po
+recursive-include zxcvbn/locale *.pot
diff --git a/babel.cfg b/babel.cfg
new file mode 100644
index 0000000..db67447
--- /dev/null
+++ b/babel.cfg
@@ -0,0 +1,12 @@
+[python: zxcvbn/**.py]
+# Babel will find all strings in *.py files
+
+[extractors]
+python = babel.messages.extract:extract_python
+
+# Gen messages.pot and .po
+# pybabel extract -F babel.cfg -o zxcvbn/locale/messages.pot .
+# cd zxcvbn
+# pybabel init -i locale/messages.pot -d locale -l zh_CN
+# translation files
+# cd .. && pybabel compile -d zxcvbn/locale
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..f1467cb
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools", "Babel"]
+build-backend = "setuptools.build_meta"
diff --git a/requirements.txt b/requirements.txt
index 5ac1407..98dd74f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ pytest==3.5.0; python_version < "3.6"
 
 # For Python 3.6+, install a more modern Pytest:
 pytest==7.4.2; python_version >= "3.6"
+babel>=2.17.0
\ No newline at end of file
diff --git a/setup.cfg b/setup.cfg
index 3c6e79c..d2200e6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,2 +1,3 @@
-[bdist_wheel]
-universal=1
+[compile_catalog]
+directory = zxcvbn/locale
+domain = messages
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 02e7dcf..5d45136 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,27 @@
-from setuptools import setup
+from setuptools import setup, find_packages
+from setuptools.command.build import build as _build
+from setuptools.command.sdist import sdist as _sdist
+from babel.messages.frontend import compile_catalog
+import subprocess
+import os
+
+class build(_build):
+    def run(self):
+        self.run_command('compile_catalog')
+        super().run()
+
+class sdist(_sdist):
+    def run(self):
+        # Compile babel messages before creating source distribution
+        self.run_command('compile_catalog')
+        super().run()
+
+class CompileCatalog(compile_catalog):
+    def run(self):
+        # Ensure the locale directory exists
+        if not os.path.exists('zxcvbn/locale'):
+            return
+        super().run()
 
 with open('README.rst') as file:
     long_description = file.read()
@@ -6,7 +29,11 @@
 setup(
     name='zxcvbn',
     version='4.5.0',
-    packages=['zxcvbn'],
+    packages=find_packages(),
+    include_package_data=True,
+    package_data={
+        'zxcvbn': ['locale/*/LC_MESSAGES/*.mo'],
+    },
     url='https://github.com/dwolfhub/zxcvbn-python',
     download_url='https://github.com/dwolfhub/zxcvbn-python/tarball/v4.5.0',
     license='MIT',
@@ -33,5 +60,10 @@
         'Programming Language :: Python :: 3.12',
         'Topic :: Security',
         'Topic :: Software Development :: Libraries :: Python Modules',
-    ]
+    ],
+    cmdclass={
+        'build': build,
+        'sdist': sdist,
+        'compile_catalog': CompileCatalog,
+    },
 )
diff --git a/tests/zxcvbn_test.py b/tests/zxcvbn_test.py
index 6752c1f..c985072 100644
--- a/tests/zxcvbn_test.py
+++ b/tests/zxcvbn_test.py
@@ -46,3 +46,26 @@ def test_empty_password():
       zxcvbn(password, user_inputs=[input_])
     except IndexError as ie:
         assert False, "Empty password raised IndexError"
+
+def test_chinese_language_support():
+    # test Chinese translation
+    password = "musculature"
+    result = zxcvbn(password, lang='zh')
+    
+    assert result["feedback"]["warning"] == \
+           "单个词语容易被猜中。", \
+           "Returns Chinese translation for single-word passwords"
+
+    # test fallback to English if translation not found
+    result = zxcvbn(password, lang='fr')  # French not installed
+    
+    assert result["feedback"]["warning"] == \
+           "A word by itself is easy to guess.", \
+           "Falls back to English for unsupported languages"
+
+    # test English if translation not found
+    result = zxcvbn(password)  # French not installed
+    
+    assert result["feedback"]["warning"] == \
+           "A word by itself is easy to guess.", \
+           "Falls back to English for unsupported languages"
diff --git a/tox.ini b/tox.ini
index f73fe62..e714456 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,6 +5,14 @@ isolated_build = True
 [testenv]
 deps =
     pytest
+    babel
 commands =
     pytest
     python tests/test_compatibility.py tests/password_expected_value.json
+
+[testenv:.pkg]
+deps =
+    babel
+allowlist_externals = pybabel
+commands_pre =
+    pybabel compile -d zxcvbn/locale
diff --git a/zxcvbn/__init__.py b/zxcvbn/__init__.py
index b0b8424..6b923db 100644
--- a/zxcvbn/__init__.py
+++ b/zxcvbn/__init__.py
@@ -1,18 +1,77 @@
 import os
 from datetime import datetime
-
+import gettext
 from . import matching, scoring, time_estimates, feedback
 
 
-def zxcvbn(password, user_inputs=None, max_length=72):
+# Global variable to track the last language code for which translation was set up
+_LAST_LANG_CODE_SETUP = None
+
+def setup_translation(lang_code='en'):
+    """Setup translation function _() for the given language code.
+    
+    Args:
+        lang_code (str): Language code (e.g. 'en', 'zh_CN'). Defaults to 'en'.
+    """
+    global _  # Make _ available globally
+    global _LAST_LANG_CODE_SETUP
+
+    # Only set up translation if the language code has changed
+    if lang_code == _LAST_LANG_CODE_SETUP:
+        return
+
+    LOCALE_DIR = os.path.join(os.path.dirname(__file__), 'locale')
+    DOMAIN = 'messages'
+    languages_to_try = []
+
+    # 1. Core logic for implementing locale aliasing
+    if lang_code.lower().startswith('zh'):
+        # For any Chinese variants, build a fallback chain
+        languages_to_try = [lang_code, 'zh_CN', 'zh']
+        # Remove duplicates while preserving order
+        languages_to_try = sorted(set(languages_to_try), key=languages_to_try.index)
+    else:
+        # For other languages, use directly
+        languages_to_try = [lang_code]
+
+    print(f"Attempting to load translations for '{lang_code}'. Search path: {languages_to_try}")
+
+    try:
+        # 2. Pass our constructed language list to gettext
+        translation = gettext.translation(
+            DOMAIN,
+            localedir=LOCALE_DIR,
+            languages=languages_to_try,
+            fallback=True # fallback=True ensures no exception if all languages not found
+        )
+        
+        # 3. Install translation function _() globally
+        translation.install()
+        print(f"Successfully loaded translation: {translation.info().get('language')}")
+
+    except FileNotFoundError:
+        # If even fallback language is not found, use default gettext (no translation)
+        print("No suitable translation found. Falling back to original strings.")
+        _ = gettext.gettext
+
+    from .feedback import get_feedback as _get_feedback
+    from . import feedback
+    feedback._ = _
+
+    # Update the last configured language code
+    _LAST_LANG_CODE_SETUP = lang_code
+
+def zxcvbn(password, user_inputs=None, max_length=72, lang='en'):
     # Throw error if password exceeds max length
     if len(password) > max_length:
         raise ValueError(f"Password exceeds max length of {max_length} characters.")
-
-    try:
+    setup_translation(lang)
+    # Python 2/3 compatibility for string types
+    import sys
+    if sys.version_info[0] == 2:
         # Python 2 string types
         basestring = (str, unicode)
-    except NameError:
+    else:
         # Python 3 string types
         basestring = (str, bytes)
 
diff --git a/zxcvbn/__main__.py b/zxcvbn/__main__.py
index 0f4ee91..24dfc89 100644
--- a/zxcvbn/__main__.py
+++ b/zxcvbn/__main__.py
@@ -22,6 +22,12 @@
     type=int,
     help='Override password max length (default: 72)'
 )
+parser.add_argument(
+    '--lang',
+    default='en',
+    type=str,
+    help='Override language for feedback messages (default: en)'
+)
 
 class JSONEncoder(json.JSONEncoder):
     def default(self, o):
@@ -42,7 +48,7 @@ def cli():
     else:
         password = getpass.getpass()
 
-    res = zxcvbn(password, user_inputs=args.user_input, max_length=args.max_length)
+    res = zxcvbn(password, user_inputs=args.user_input, max_length=args.max_length, lang=args.lang)
     json.dump(res, sys.stdout, indent=2, cls=JSONEncoder)
     sys.stdout.write('\n')
 
diff --git a/zxcvbn/feedback.py b/zxcvbn/feedback.py
index 144d634..09757f9 100644
--- a/zxcvbn/feedback.py
+++ b/zxcvbn/feedback.py
@@ -1,5 +1,26 @@
 from zxcvbn.scoring import START_UPPER, ALL_UPPER
-from gettext import gettext as _
+from gettext import gettext as gettext_
+from typing import Callable, Optional
+
+# Store reference to translation function for fallback handling
+def _(s: str) -> str:
+    """Translation function wrapper that falls back to identity if no translation available.
+    
+    Args:
+        s: The string to translate
+        
+    Returns:
+        Translated string or original string if translation not available
+    """
+    try:
+        # Try to use gettext translation
+        trans = globals().get('_', gettext_)
+        return trans(s)
+    except:
+        return s
+
+# Store reference to translation function for fallback handling
+_ = lambda s: s if not hasattr(_.__globals__, '_') else _.__globals__['_'](s)
 
 
 def get_feedback(score, sequence):
diff --git a/zxcvbn/locale/messages.pot b/zxcvbn/locale/messages.pot
new file mode 100644
index 0000000..03de104
--- /dev/null
+++ b/zxcvbn/locale/messages.pot
@@ -0,0 +1,127 @@
+# Translations template for PROJECT.
+# Copyright (C) 2025 ORGANIZATION
+# This file is distributed under the same license as the PROJECT project.
+# FIRST AUTHOR <liukan@126.com>, 2025.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PROJECT VERSION\n"
+"Report-Msgid-Bugs-To: liukan@126.com\n"
+"POT-Creation-Date: 2025-06-30 11:42+0800\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <liukan@126.com>\n"
+"Language-Team: LANGUAGE <liukan@126.com>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=utf-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Generated-By: Babel 2.17.0\n"
+
+#: zxcvbn/feedback.py:10
+msgid "Use a few words, avoid common phrases."
+msgstr ""
+
+#: zxcvbn/feedback.py:11
+msgid "No need for symbols, digits, or uppercase letters."
+msgstr ""
+
+#: zxcvbn/feedback.py:27
+msgid "Add another word or two. Uncommon words are better."
+msgstr ""
+
+#: zxcvbn/feedback.py:46
+msgid "Straight rows of keys are easy to guess."
+msgstr ""
+
+#: zxcvbn/feedback.py:48
+msgid "Short keyboard patterns are easy to guess."
+msgstr ""
+
+#: zxcvbn/feedback.py:53
+msgid "Use a longer keyboard pattern with more turns."
+msgstr ""
+
+#: zxcvbn/feedback.py:58
+msgid "Repeats like \"aaa\" are easy to guess."
+msgstr ""
+
+#: zxcvbn/feedback.py:60
+msgid "Repeats like \"abcabcabc\" are only slightly harder to guess than \"abc\"."
+msgstr ""
+
+#: zxcvbn/feedback.py:65
+msgid "Avoid repeated words and characters."
+msgstr ""
+
+#: zxcvbn/feedback.py:70
+msgid "Sequences like \"abc\" or \"6543\" are easy to guess."
+msgstr ""
+
+#: zxcvbn/feedback.py:72
+msgid "Avoid sequences."
+msgstr ""
+
+#: zxcvbn/feedback.py:78
+msgid "Recent years are easy to guess."
+msgstr ""
+
+#: zxcvbn/feedback.py:80
+msgid "Avoid recent years."
+msgstr ""
+
+#: zxcvbn/feedback.py:81
+msgid "Avoid years that are associated with you."
+msgstr ""
+
+#: zxcvbn/feedback.py:86
+msgid "Dates are often easy to guess."
+msgstr ""
+
+#: zxcvbn/feedback.py:88
+msgid "Avoid dates and years that are associated with you."
+msgstr ""
+
+#: zxcvbn/feedback.py:99
+msgid "This is a top-10 common password."
+msgstr ""
+
+#: zxcvbn/feedback.py:101
+msgid "This is a top-100 common password."
+msgstr ""
+
+#: zxcvbn/feedback.py:103
+msgid "This is a very common password."
+msgstr ""
+
+#: zxcvbn/feedback.py:105
+msgid "This is similar to a commonly used password."
+msgstr ""
+
+#: zxcvbn/feedback.py:108
+msgid "A word by itself is easy to guess."
+msgstr ""
+
+#: zxcvbn/feedback.py:112
+msgid "Names and surnames by themselves are easy to guess."
+msgstr ""
+
+#: zxcvbn/feedback.py:114
+msgid "Common names and surnames are easy to guess."
+msgstr ""
+
+#: zxcvbn/feedback.py:121
+msgid "Capitalization doesn't help very much."
+msgstr ""
+
+#: zxcvbn/feedback.py:123
+msgid "All-uppercase is almost as easy to guess as all-lowercase."
+msgstr ""
+
+#: zxcvbn/feedback.py:127
+msgid "Reversed words aren't much harder to guess."
+msgstr ""
+
+#: zxcvbn/feedback.py:129
+msgid "Predictable substitutions like '@' instead of 'a' don't help very much."
+msgstr ""
+
diff --git a/zxcvbn/locale/zh_CN/LC_MESSAGES/messages.po b/zxcvbn/locale/zh_CN/LC_MESSAGES/messages.po
new file mode 100644
index 0000000..5738f85
--- /dev/null
+++ b/zxcvbn/locale/zh_CN/LC_MESSAGES/messages.po
@@ -0,0 +1,127 @@
+# Chinese (Simplified, China) translations for PROJECT.
+# Copyright (C) 2025 ORGANIZATION
+# This file is distributed under the same license as the PROJECT project.
+# FIRST AUTHOR <liukan@126.com>, 2025.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: PROJECT VERSION\n"
+"Report-Msgid-Bugs-To: liukan@126.com\n"
+"POT-Creation-Date: 2025-06-30 11:42+0800\n"
+"PO-Revision-Date: 2025-06-30 15:27+0800\n"
+"Last-Translator: FULL NAME <liukan@126.com>\n"
+"Language: zh_Hans_CN\n"
+"Language-Team: zh_Hans_CN <liukan@126.com>\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=utf-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Generated-By: Babel 2.17.0\n"
+
+#: zxcvbn/feedback.py:10
+msgid "Use a few words, avoid common phrases."
+msgstr "请使用多个词语，避免常见短语。"
+
+#: zxcvbn/feedback.py:11
+msgid "No need for symbols, digits, or uppercase letters."
+msgstr "不需要符号、数字或大写字母。"
+
+#: zxcvbn/feedback.py:27
+msgid "Add another word or two. Uncommon words are better."
+msgstr "建议再添加一两个词，不常见的词更好。"
+
+#: zxcvbn/feedback.py:46
+msgid "Straight rows of keys are easy to guess."
+msgstr "键盘上的直线按键排列容易被猜中。"
+
+#: zxcvbn/feedback.py:48
+msgid "Short keyboard patterns are easy to guess."
+msgstr "短的键盘模式容易被猜中。"
+
+#: zxcvbn/feedback.py:53
+msgid "Use a longer keyboard pattern with more turns."
+msgstr "请使用更长且转折更多的键盘模式。"
+
+#: zxcvbn/feedback.py:58
+msgid "Repeats like \"aaa\" are easy to guess."
+msgstr "像\"aaa\"这样的重复模式容易被猜中。"
+
+#: zxcvbn/feedback.py:60
+msgid "Repeats like \"abcabcabc\" are only slightly harder to guess than \"abc\"."
+msgstr "像\"abcabcabc\"这样的重复模式只比\"abc\"难猜一点。"
+
+#: zxcvbn/feedback.py:65
+msgid "Avoid repeated words and characters."
+msgstr "避免重复的单词和字符。"
+
+#: zxcvbn/feedback.py:70
+msgid "Sequences like \"abc\" or \"6543\" are easy to guess."
+msgstr "像\"abc\"或\"6543\"这样的连续序列容易被猜中。"
+
+#: zxcvbn/feedback.py:72
+msgid "Avoid sequences."
+msgstr "避免使用连续序列。"
+
+#: zxcvbn/feedback.py:78
+msgid "Recent years are easy to guess."
+msgstr "近年来份容易被猜中。"
+
+#: zxcvbn/feedback.py:80
+msgid "Avoid recent years."
+msgstr "避免使用近年份。"
+
+#: zxcvbn/feedback.py:81
+msgid "Avoid years that are associated with you."
+msgstr "避免使用与自己相关的年份。"
+
+#: zxcvbn/feedback.py:86
+msgid "Dates are often easy to guess."
+msgstr "日期常常容易被猜中。"
+
+#: zxcvbn/feedback.py:88
+msgid "Avoid dates and years that are associated with you."
+msgstr "避免使用与自己相关的日期和年份。"
+
+#: zxcvbn/feedback.py:99
+msgid "This is a top-10 common password."
+msgstr "这是排名前10的常用密码。"
+
+#: zxcvbn/feedback.py:101
+msgid "This is a top-100 common password."
+msgstr "这是排名前100的常用密码。"
+
+#: zxcvbn/feedback.py:103
+msgid "This is a very common password."
+msgstr "这是一个非常常见的密码。"
+
+#: zxcvbn/feedback.py:105
+msgid "This is similar to a commonly used password."
+msgstr "这与常用密码相似。"
+
+#: zxcvbn/feedback.py:108
+msgid "A word by itself is easy to guess."
+msgstr "单个词语容易被猜中。"
+
+#: zxcvbn/feedback.py:112
+msgid "Names and surnames by themselves are easy to guess."
+msgstr "单独的姓名容易被猜中。"
+
+#: zxcvbn/feedback.py:114
+msgid "Common names and surnames are easy to guess."
+msgstr "常见姓名容易被猜中。"
+
+#: zxcvbn/feedback.py:121
+msgid "Capitalization doesn't help very much."
+msgstr "大小写帮助不大。"
+
+#: zxcvbn/feedback.py:123
+msgid "All-uppercase is almost as easy to guess as all-lowercase."
+msgstr "全大写几乎和全小写一样容易被猜中。"
+
+#: zxcvbn/feedback.py:127
+msgid "Reversed words aren't much harder to guess."
+msgstr "反转的单词也没有更难猜。"
+
+#: zxcvbn/feedback.py:129
+msgid "Predictable substitutions like '@' instead of 'a' don't help very much."
+msgstr "像用'@'代替'a'这种可预测的替换帮助不大。"