一座高大的门挡住了通往后面的唯一入口。

A high gate blocks the only entrance to the rear.

《牛津词典》

乔治打开了通往后面厨房的小窗。

George opened the slit that opened back into the kitchen.

youdao

图书管理员把头往后面一仰，尖着嗓子哈哈大笑。

The librarian threw back his head and laughed shrilly.

youdao

All right. So we've got it now let's test it. So we're going to do here we're going to run compare methods.

很抱歉，那些坐在后面的同学,想往前面来的请自便，我们已经做好准备,让我们去试一下，我们接下来将要做的就是。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now, it's not obvious but it is true that you cannot add to this anymore.

虽然不是很明显,但你确实无法再往后面加什么东西了

耶鲁公开课 - 基础物理课程节选

You can add something else to the answer without invalidating it, and that is anything with one power of t in it, because if you take one derivative it'll survive, but if you take two derivatives, it'll get wiped out.

你可以往答案后面加上其它东西,而且不影响结果,也就是任何t的一次项,因为你求一次导数之后它还在,但如果你求两次导数,这一项就不存在了

耶鲁公开课 - 基础物理课程节选