prodorsum

例句：

1. 1. The doctor advised him to exercise regularly to maintain his health.
   医生建议他定期锻炼以保持健康。
2. 2.She sat down on the couch and adjusted her dress.
   她坐在沙发上，调整了一下裙子。
3. 3.He lifted his legs up and stretched them out.
   他抬起双腿，伸展开来。