How do you tell one from another?

你怎么把它们区分开来？

《柯林斯英汉双解大词典》

Many kinds of fish can tell one from another, according to their group, their relatives, and even their own eggs.

许多种类的鱼可以根据它们的群体、它们的亲戚，甚至它们自己的卵来区分彼此。

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I can't tell one from another.

我不能把两者区别开来。

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One of the things that's interesting about that is you can see pottery styles that you can hardly tell whether they came from one end of the Mediterranean or another, if they're of the Mycenaean variety, because it was a single culture.

一个有趣的现象是,你可以鉴别出陶器的风格,但你却很难区分,它来自于地中海的哪一边,因为它们都属于同一文明

耶鲁公开课 - 古希腊历史简介课程节选

Because Port is sweet and alcoholic, you might think you couldn't tell one from another.

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The population has recovered, but the genetic diversity has not recovered so that all the Tasmanian devils that exist are so similar to one another genetically that their immune systems don't seem to be able to tell one from another.

NPR: Startling New Evidence Cancer Is Contagious

But concerns like that are not likely to resonate with most Americans who -- let's face it -- can't tell one medal from another.

CNN: Don't give medals for drone attacks