The leg to be stretched should be positioned behind your trunk with your knee bent.

要伸展的那条腿应该放在躯干的后面并弯曲膝盖。

《柯林斯英汉双解大词典》

You might be in heavy traffic with another vehicle right behind you.

你可能身处滚滚车流中，而另一辆车正跟在你后面。

youdao

The marsupial's eye problem may be to do with her diet before she was abandoned, or because she is overweight, leading to fat deposits behind her eyes.

这个袋类动物眼部问题可能与它被抛弃前的饮食有关，也可能是因为它超重，导致眼睛后面堆积了脂肪。

youdao

Soldiers with such weapons could be put into position behind stone or earth walls.

VOA: special.2009.12.03

And I don't think that we will be completely satisfied when we do leave with what we left behind That's it for today.

我认为我们不会非常满意,当我们走时，看到我们所留下的问题,今天的节目就到此结束了。

普林斯顿公开课 - 国际座谈会课程节选

If you walk into a class with 5th graders, who on day one are years behind where they should be and hate school and are kind of like to hate you because of it.

如果你走进一个五年级教室，学生们从第一天开始就落后很多,恨学校，因此也恨你。

哈佛公开课 - 幸福课课程节选

We will need, in particular, the Security Council to be united behind us, and with us.

CNN: U.N. envoy: Iraqi government could be set up soon

And the small fibers can be left behind and filed away with the document.

FORBES: The White Glove Myth

The pessimism proved unfounded, because it ignored what could be done with the resources left behind.

ECONOMIST: Shutting military bases