打比方

It is demonstrably an unfair comparison.

这样打比方显然不公平。

You´re speaking metaphorically, I hope.

我希望你是在打比方。

I´m still puzzled, could you draw an analogy.

我还是不懂， 你最好能打比方说明。

Let´s say, if this racket is a badminton tree, I believe there are 5 roots.

如果打比方说这个球拍是羽毛球之树， 那么这5条原则就是这棵树的5个根。

We often take water waves as an example to illustrat the radio waves.

我们经常把水波拿来打比方讲解无线电波。