明天考试，你一定要加油哦。

Míngtiān kǎoshì, nǐ yídìng yào jiāyóu o.

You have an exam tomorrow; you must do your best.

比赛快结束了，我们大声给他们加油。

Bǐsài kuài jiéshù le, wǒmen dàshēng gěi tāmen jiāyóu.

The game is almost over; we loudly cheer for them.

我早上去加油站给车加油。

Wǒ zǎoshang qù jiāyóuzhàn gěi chē jiāyóu.

I went to the gas station in the morning to fill up the car.