saddle-function

例句：

1. 1.The saddle-shaped design of the chair is comfortable for sitting.
   椅子的鞍形设计坐着很舒服。
2. 2.The saddle-shaped design of the seat is comfortable for sitting.
   座位的鞍形设计坐着很舒服。
3. 3. The saddle-shaped design of the backrest is comfortable for sitting.
   后座鞍形设计坐着很舒服。