Never force your legs to overstretch, or you can cause injuries.

不要过于用力压腿，否则你会受伤。

《柯林斯英汉双解大词典》

They can even give you mechanical legs or a new heart.

他们甚至可以给你装上机械腿或新的心脏。

youdao

Unless you have the legs of a gazelle, wear them with heels.

除非你有羚羊腿，否则就搭配高跟鞋。

youdao

And,if you are in a boat, keep your arms and legs out of the water.

VOA: special.2009.08.19

Now I call that, and it says, 20 tell me how many heads you want, give it a 20, and tell it how many legs 56 you want, give it 56, and it prints out the answers. I know, whoop-dee-doo.

请告诉我你想要几个头，设为，然后告诉它你想要几条腿,设为,最后它会打印结果，哇哦。

麻省理工公开课 - 计算机科学及编程导论课程节选

You know, so I have to get out and stretch my legs,

所以我得出来活动活动，伸伸腿，

愉快的音乐庆典 - SpeakingMax英语口语达人

"It may give you extra legs deep in the season, but you still have to have that God-given ability to hit the ball, " he said.

CNN: STORY HIGHLIGHTS

Big--you know, thick legs or, you know, a little roundness.

NPR: Anthony Hamilton: 'Ain't Nobody Worryin'

Nightly inspiration is found in the clubs, where you might see legs and arms flying in a breakdance battle.

BBC: Best places to get dance fever