Make sure you know which is which.

你要确信你能区分哪个是哪个。

Now who can tell us which is which?

谁能指出哪只是燕子，哪只是麻雀呢？

The women aren't told which is which.

这些妇女没有被告知哪个是哪个。

Stay, stand apart, I know not which is which.

等一等，站开些，我不知道哪个是哪个。

Let's tag the disk now or else we'll forget which is which.

加上标签吧，不然我们就记不清哪个是哪个了。

These kittens look exactly alike—how can you tell which is which?

小猫看上去一模一样，你怎么能分出哪个是哪个?。

These kittens look exactly alike how can you tell which is which?

这些小猫看上去一模一样--你怎么能分出哪个是哪个?。

The dimpods have so many arms and legs that you cannot tell which is which.

丁泼兹长着许许多多的手臂和腿,以至于你很难分清哪些是手臂哪些是腿.

It cannot be said which is which without knowing more about the person and their situation.

不能说没有了解个人和个人的情境。

Teacher: Here are two birds, one is a swallow, the other is sparrow. Now who can tell us which is which?

老师： 这儿有两只鸟，一只是麻雀。谁能指出哪只是燕子，哪只是麻雀吗？