大学和高中非常不同。

College is very different ___from high school.

他的观点和我的几乎不可能更不同了。

His opinion could hardly be more different ___from mine.

这两姐妹太像了，几乎不可能把她们区分开来。

The two sisters are so similar that it's almost impossible to tell one ___from the other.