divide into和separate from的区别

　　When the boosters have helped to lift a space station into orbit, they separate from it and return to the earth.

　　助推火箭把太空站推入轨道后，就自行脱落返回地球。

　　They want to separate teaching from research

　　他们想把教学和研究分开。

　　Divide 2 into 7, and the answer is 3, remainder 1.

　　7除以2，商3余1。

　　It will be easiest if we divide them into groups

　　如果我们将他们分成小组将是最简单的。