diff --git a/src/engine/actions.py b/src/engine/actions.py
index df679eb..33a561e 100644
--- a/src/engine/actions.py
+++ b/src/engine/actions.py
@@ -1,4 +1,4 @@
-from random import random
+import random as random_module
 
 from loguru import logger
 from src.engine.mahjong_tile import MahjongTile
@@ -203,7 +203,7 @@ def check_other_players(self, tile):
             continue
 
         # 优先检查胡牌
-        if self.can_win(self.state.hands[player], self.state.melds[player], self.state.missing_suits[player]):
+        if self.state.can_win(self.state.hands[player], self.state.melds[player], self.state.missing_suits[player]):
             logger.info(f"玩家 {player} 可以胡玩家 {current_player} 的牌: {tile}")
             handle_win(player, current_player, tile)
             actions_taken = True
@@ -346,10 +346,6 @@ def random_discard_tile(engine):
 def random_choice(hand, missing_suit):
     """
     根据缺门优先随机选择打出的牌。
-
-    :param hand: 当前玩家的手牌（列表，包含 MahjongTile 对象）。
-    :param missing_suit: 当前玩家的缺门花色（字符串）。
-    :return: 随机选择的 MahjongTile 对象。
     """
     if not hand:
         raise ValueError("手牌不能为空")
@@ -359,11 +355,11 @@ def random_choice(hand, missing_suit):
 
     # 如果缺门牌存在，优先从缺门牌中随机选择
     if missing_suit_tiles:
-        index = random.randint(0, len(missing_suit_tiles) - 1)
+        index = random_module.randint(0, len(missing_suit_tiles) - 1)
         return missing_suit_tiles[index]
 
     # 如果缺门牌不存在，从剩余牌中随机选择
-    index = random.randint(0, len(hand) - 1)
+    index = random_module.randint(0, len(hand) - 1)
     return hand[index]
 
 
diff --git a/src/engine/chengdu_mahjong_engine.py b/src/engine/chengdu_mahjong_engine.py
index 4a7f9cf..b401282 100644
--- a/src/engine/chengdu_mahjong_engine.py
+++ b/src/engine/chengdu_mahjong_engine.py
@@ -84,7 +84,7 @@ class ChengduMahjongEngine:
                         logger.info(f"玩家 {self.current_player} 杠牌，类型: {gang_type}")
                 else:
                     title = random_choice(self.state.hands[self.current_player], self.state.missing_suits[self.current_player])
-                    check_other_players(self.state.hands[self.current_player], title)
+                    check_other_players(self, title)