(一).I know a thing or two about it.我对此很熟悉。

原音重现：

A: Have you ever gone camping in the woods?

你在树林里野营过吗?

B: I know a thing or two about it. I go camping everyyear.

我对此很熟悉，我每年都去野营。

(二).Do your stuff!让我看看你的本亊! /让我看看你的实力。

原音重现：

A: I know you play the piano well. Do your stuff.

我知道你的钢琴弹得很好，让我看看你的实力。

B. Alright. Are there any songs you want me to play for you?

好的，你希望我为你湞奏哪首曲子?