stretch out
US /stretʃ aʊt/
UK /stretʃ aʊt/

1.
伸展, 舒展
to extend one's body or a part of one's body to its full length
:
•
She decided to stretch out on the sofa and relax.
她决定在沙发上伸展身体放松一下。
•
He would often stretch out his legs after a long run.
长跑后他经常伸展双腿。