老师决定将班级分成三个更小的讨论组。

The teacher decided to ___separate the class into three smaller discussion groups.

该国的两个主要区域被一条巨大的山脉分隔开来。

Two main regions of the country are ___separated by a vast mountain range.

我们将家庭垃圾分拣到不同的回收桶中。

We ___separate our household waste into different bins for recycling.