diff --git a/services/init_db.py b/services/init_db.py
index d285adb..23c8125 100644
--- a/services/init_db.py
+++ b/services/init_db.py
@@ -5,17 +5,17 @@ from config import SYSTEM_ADMIN_CONFIG
 from services.auth import get_password_hash
 
 async def init_db(engine: AsyncEngine):
-    """Initialize database"""
+    """初始化数据库"""
     async with engine.begin() as conn:
-        # Create all tables
+        # 创建所有表
         await conn.run_sync(Base.metadata.create_all)
 
-        # Check if system admin exists
+        # 检查系统管理员是否存在
         result = await conn.execute(
             select(User).where(User.role == UserRole.SYSTEM_ADMIN)
         )
         if not result.scalars().first():
-            # Create default system admin
+            # 创建默认系统管理员
             admin = User(
                 username=SYSTEM_ADMIN_CONFIG['username'],
                 password=get_password_hash(SYSTEM_ADMIN_CONFIG['password']),