kneeling pad

例句：

1. 1. She uses a kneeling pad to protect her knees when she's playing soccer.
   她使用跪垫来保护她的膝盖，当她踢足球时。
2. 2. The gymnast used a kneeling pad during the competition to prevent injuries.
   这位体操运动员在比赛中使用了跪垫，以防止受伤。
3. 3. The teacher placed a kneeling pad on the floor for the students to sit on.
   老师在地板上放置了一个跪垫，让学生们坐上去。