give a tug

例句：

1. 1.He gave a tug on the rope and it came loose.
   他拉了拉绳子，它松脱了。
2. 2.The children were playing tug-of-war with their friends.
   孩子们和他们的朋友玩拔河游戏。
3. 3.She gave a tug at the door handle and it opened.
   她拉了一下门把手，门开了。