lip bumper

例句：

1. 1. He used a lip bumper to protect his lips from the cold air.
   他用嘴唇保护器来保护他的嘴唇免受冷空气的侵害。
2. 2. The lip bumper was designed to prevent cuts and abrasions on the lips.
   这个唇部保护器的设计是为了防止嘴唇上的割伤和擦伤。
3. 3. After applying the lip bumper, she felt much more comfortable during the long flight.
   在涂抹了唇部保护剂之后，她在长时间的飞行中感觉更加舒适。