It is hard to tell the twin brothers one from the other. ①为什么要用one from the other?难道是从另一个中辨别么?②为什么用the other 而不用the others?

问题描述:

It is hard to tell the twin brothers one from the other. ①为什么要用one from the other?
难道是从另一个中辨别么?
②为什么用the other 而不用the others?