嘴巴

例句：

1. 1. She was talking to her friend about the new restaurant they had visited.
   她正在和她的朋友谈论他们参观过的那家新餐厅。
2. 2. The dog's mouth was covered in saliva.
   狗的嘴里满是唾液。
3. 3. The scientist examined the mouth of the dinosaur with a microscope.
   科学家用显微镜检查了恐龙的嘴部。