如果你在没有手机和指南针的情况下迷路，并且确实找不到哪里是北方了，有一些技巧可以帮助你找到返回人类社会的路，其中一个是沿着陆地走。

If you get lost without a phone or a compass, and you literally can't find north, a few tricks may help you navigate back to civilization, one of which is to follow the land.

youdao

在这种情况下，如果您比较返回对象的相同性，那么您会发现它们是不相同的。

In this case, if you compare the identity of the returned objects, you will find that they are not identical.

youdao

在这种情况下，返回相同的块。

In such cases, the same block is returned.

youdao

Is it one basically? In which case, just return a copy the list. That's the simple case.

是最基本的情况吗？在这种情况下,仅仅返回一个列表的拷贝，这是简单的情况。

麻省理工公开课 - 计算机科学及编程导论课程节选