the whole body

例句：

1. 1. The doctor advised him to takea walk and stretch his legs.
   医生建议他散步并伸展双腿。
2. 2. Shestretched her arms out widein the gymnastics routine.
   她在体操表演中伸展双臂。
3. 3. Hestretched out his hand to shake hands withthe newcomer.
   他伸出手与新来的人握手。