例句：
You should cheer yourself up.
你应该使自己振作起来。
Let's cheer for the winner.
让我们为获胜者而欢呼。
They all clap and cheer.
他们都鼓掌和欢呼。
Paddy was always cheerful and jolly.
帕迪总是很高兴，很开心。
He made a weak attempt to look cheerful.
他有气无力地摆出高兴的`样子。
You're not your usual cheerful self today.
你今天不像往常那么快快乐乐的。