So all you have behind here for spaces sake is just 8 cups, each with different weights.

在天平后面就是8个杯子，它们的重量互不相同。

哈佛公开课 - 计算机科学课程节选

So each of these cups again have different weights if I want to find the lightest of them I might start not knowing which is which.

它们的重量互不相同，如果我要,找出最轻的一个，而我根本不知道会是,哪一个。

哈佛公开课 - 计算机科学课程节选

They are different because they have different compositions.

它们互不相同,因为它们有不同的组成。

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