我买了两个苹果。

Wǒ mǎile liǎng gè píngguǒ.

I bought two apples.

他有两个孩子。

Tā yǒu liǎng gè háizi.

He has two kids.

我两天没做运动了。

Wǒ liǎng tiān méi zuò yùndòngle.

I haven't exercised in two days.