鞋内衬底

例句：

1. 1. She put on her new shoes and stepped onto the soft, cushioned insole.
   她穿上新鞋，踏上了柔软的、有垫子的鞋底。
2. 2. The old lady had to replace her worn-out insoles with new ones because of her arthritis.
   这位老太太因为关节炎不得不用新的鞋垫替换磨损的鞋垫。
3. 3. The insole is designed to provide extra comfort for those who have foot pain.
   鞋垫设计用来为那些有脚痛的人提供额外的舒适。