diff --git a/.DS_Store b/.DS_Store
index 248e563..00dfbbc 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/app.zip b/app.zip
new file mode 100644
index 0000000..a922943
Binary files /dev/null and b/app.zip differ
diff --git a/app/api/endpoints/meetings.py b/app/api/endpoints/meetings.py
index 6dc17ea..3f80b93 100644
--- a/app/api/endpoints/meetings.py
+++ b/app/api/endpoints/meetings.py
@@ -42,8 +42,8 @@ def get_meetings(current_user: dict = Depends(get_current_user), user_id: Option
         cursor = connection.cursor(dictionary=True)
         base_query = '''
             SELECT m.meeting_id, m.title, m.meeting_time, m.summary, m.created_at, m.tags,
-                   m.user_id as creator_id, u.caption as creator_username
-            FROM meetings m JOIN users u ON m.user_id = u.user_id
+                   m.user_id as creator_id, u.caption as creator_username, af.file_path as audio_file_path
+            FROM meetings m JOIN users u ON m.user_id = u.user_id LEFT JOIN audio_files af ON m.meeting_id = af.meeting_id
         '''
         if user_id:
             query = f'{base_query} LEFT JOIN attendees a ON m.meeting_id = a.meeting_id WHERE m.user_id = %s OR a.user_id = %s GROUP BY m.meeting_id ORDER BY m.meeting_time DESC, m.created_at DESC'
@@ -61,8 +61,8 @@ def get_meetings(current_user: dict = Depends(get_current_user), user_id: Option
             tags = _process_tags(cursor, meeting.get('tags'))
             meeting_list.append(Meeting(
                 meeting_id=meeting['meeting_id'], title=meeting['title'], meeting_time=meeting['meeting_time'],
-                summary=meeting['summary'], created_at=meeting['created_at'], attendees=attendees,
-                creator_id=meeting['creator_id'], creator_username=meeting['creator_username'], tags=tags
+                summary=meeting['summary'], created_at=meeting['created_at'], audio_file_path=meeting['audio_file_path'],
+                attendees=attendees, creator_id=meeting['creator_id'], creator_username=meeting['creator_username'], tags=tags
             ))
         return create_api_response(code="200", message="获取会议列表成功", data=meeting_list)
 
diff --git a/app/api/endpoints/users.py b/app/api/endpoints/users.py
index a6e1fe6..d08a7f2 100644
--- a/app/api/endpoints/users.py
+++ b/app/api/endpoints/users.py
@@ -1,4 +1,5 @@
 from fastapi import APIRouter, Depends
+from typing import Optional
 from app.models.models import UserInfo, PasswordChangeRequest, UserListResponse, CreateUserRequest, UpdateUserRequest, RoleInfo
 from app.core.database import get_db_connection
 from app.core.auth import get_current_user
@@ -146,14 +147,21 @@ def reset_password(user_id: int, current_user: dict = Depends(get_current_user))
         return create_api_response(code="200", message=f"用户 {user_id} 的密码已重置")
 
 @router.get("/users")
-def get_all_users(page: int = 1, size: int = 10, current_user: dict = Depends(get_current_user)):
+def get_all_users(page: int = 1, size: int = 10, role_id: Optional[int] = None, current_user: dict = Depends(get_current_user)):
     with get_db_connection() as connection:
         cursor = connection.cursor(dictionary=True)
         
-        cursor.execute("SELECT COUNT(*) as total FROM users")
+        count_query = "SELECT COUNT(*) as total FROM users"
+        params = []
+        if role_id is not None:
+            count_query += " WHERE role_id = %s"
+            params.append(role_id)
+        
+        cursor.execute(count_query, tuple(params))
         total = cursor.fetchone()['total']
         
         offset = (page - 1) * size
+        
         query = '''
             SELECT 
                 u.user_id, u.username, u.caption, u.email, u.created_at, u.role_id,
@@ -162,10 +170,21 @@ def get_all_users(page: int = 1, size: int = 10, current_user: dict = Depends(ge
                 (SELECT COUNT(*) FROM attendees WHERE user_id = u.user_id) as meetings_attended
             FROM users u
             LEFT JOIN roles r ON u.role_id = r.role_id
+        '''
+        
+        query_params = []
+        if role_id is not None:
+            query += " WHERE u.role_id = %s"
+            query_params.append(role_id)
+        
+        query += '''
             ORDER BY u.user_id ASC
             LIMIT %s OFFSET %s
         '''
-        cursor.execute(query, (size, offset))
+        
+        query_params.extend([size, offset])
+        
+        cursor.execute(query, tuple(query_params))
         users = cursor.fetchall()
         
         user_list = [UserInfo(**user) for user in users]