elastic lip

例句：

1. 1. She had a very elastic lip that could stretch and pull back.
   她的嘴唇非常弹性，可以拉伸和拉回。
2. 2.The doctor advised him to have his elastic lips checked regularly.
   医生建议他定期检查他的弹性唇部。
3. 3.During the performance, she used her elastic lips to create a dramatic effect.
   在表演中，她利用她的弹性唇部创造了戏剧性的效果。