It is difficult to make a comparison with her previous book—they are completely different.

这很难与她以前的书相比—两者是截然不同的。

Make a comparison between these positive and negative effects, and you will find that we should spend one or two hours a day doing exercises.

比较这些积极影响和消极影响，你就会发现，我们每天都应该花一两个小时进行锻炼。

Well, let's make a comparison.

这样吧，我们来做个比较。

Let's make a comparison between them.

让我们比较一下他们两人。

Let us make a comparison between a and b.

让我们比较一下生活在城市和生活在农村。