mouth hooks

例句：

1. 1. The child's mouth was so wide that it could easily fit a mouth hook.
   孩子的嘴巴那么大，可以轻松地挂上一个钩子。
2. 2.The old man used to hang his keys on the door with a simple mouth hook.
   这位老人过去常常用一个简单的钩子挂在门上挂钥匙。
3. 3. The carpenter had to remove the mouth hook before he could start working on the project.
   木匠在开始工作之前必须先拆掉那个钩子。