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get up的发音是： [ˈɡet ʌp]

get up是动词短语，意思是：起床，起立;建造;增加;打扮;

如：

I don't want to get up; but it's time for going to work.

我不想起床，但是，是上班的时候了。

They have to get up early in the morning.

早就得起床啦。

上述两个例句中的get up都表示起床的意思。

It's not whether you get knocked down. it's whether you get up again.

问题不在于你是否被击倒，而在于你是否再站起来。

这里的get up 表示站起来的意思。