他把钥匙放在兜里了吗？

Tā bǎ yàoshi fàng zài dōu lǐ le ma?

Did he put the keys in his pocket?

孩子把糖果放进兜里了。

Háizi bǎ tángguǒ fàng jìn dōu lǐ le.

The child put the candy in his pocket.

你把钥匙放在兜里，就不容易丢了。

Nǐ bǎ yàoshi fàng zài dōu lǐ, jiù bù róngyì diū le.

If you put the keys in your pocket, you won’t easily lose them.