horse mouth rasp

例句：

1. 1.The horse was led to the arena by a skilled trainer.
   一位熟练的驯兽师带领着这匹马走向了竞技场。
2. 2.The horse's mouth rasp was designed to prevent it from biting people.
   马嘴嚼子的设计是为了防止它咬人。
3. 3.The horse's mouth rasp is an essential part of its training routine.
   马嘴嚼子是马匹训练中不可或缺的一部分。