不熟

wǒ xīng fèn dé hěn zhǐ pà xià qù shuì bù shú

我兴奋得很，只怕下去睡不熟。

I was so excited that I was only afraid to go down and sleep.

wǒ duì tā de shī bù shú

我对她的诗不熟。

I'm not familiar with her poetry.

liǎng wèi hòu xuǎn rén duì zhèng zhì dōu bù shú

两位候选人对政治都不熟。

The candidates are both newcomers to politics.