shoe-elbow

例句：

1. 1. She put a shoe-elbow on the chair to make it more comfortable for her.
   她给椅子放了一个鞋垫，让它更舒服。
2. 2.The shoe-elbow is designed to prevent slipping and improve stability.
   鞋垫的设计是为了防止滑倒和提高稳定性。
3. 3. He wore a shoe-elbow to protect his feet from the cold weather.
   他穿了鞋垫来保护他的脚免受寒冷天气的影响。