有只蜘蛛正顺着你的腿往上爬。

There's a spider crawling up your leg.

《牛津词典》

他正在拉你的腿。

He's pulling your legs.

youdao

如果你碰巧很有柔韧性，他就可以把你的腿高高抬起，甚至是齐肩，创造一个非常开放的姿势。

If you happen to be very flexible, he can raise your leg high, possibly to his shoulder, creating a very open pose.

youdao

So if you have a bad heart, then a scientist can take like, cells from your leg,

所以，如果你心脏不好，科学家就可以从你的腿上提取干细胞，

关于干细胞的研究 - SpeakingMax英语口语达人

If you ask me,Where's Shelly Kagan's legs?

如果你问我，Shelly，Kagan的腿在哪里？

耶鲁公开课 - 死亡课程节选