kneeler

例句：

1. 1. She used a kneeler to prop up her laptop while she worked on her homework.
   她用膝盖垫来支撑笔记本电脑，以便她做作业。
2. 2. The nurse gave the patient a kneeler to help him sit up.
   护士给病人一个膝盖垫，帮助他坐起来。
3. 3. He placed his feet on the kneeler and leaned back against the wall.
   他把脚放在膝盖垫上，靠在墙上休息。