" To act up" means here that something is going wrong.

“To act up” 在这里的意思是出问题了。

To " act up, " is a two-word phrasal verb meaning to have problems or to create problems.

“act up”是一个由两个词组成的短语动词，意思是有问题或制造问题。

" To act up" is a two-word phrasal verb meaning to do or say things that are inappropriate.

“To act up”是一个双词短语动词，意思是做或说不恰当的事情。

The phrasal verb " to act up" here means to cause problems – to not work or function properly.

这里的短语动词“to act up” 的意思是引起问题——不能正常工作或发挥作用。

Once sure of that, and where women are concerned it is not easy, the next is, to act up to the decision.

一旦确定这一点， 而且涉及到女性， 这并不容易， 其次是按照决定行事。

" To act up" is a two-word phrasal verb meaning to behave in certain ways, to behave badly so that someone will pay attention to you or will notice you.

“To act up” 是一个双词短语动词， 意思是以某种方式表现，表现得很糟糕， 这样别人就会注意你或注意到你。

The verb " to act up" is a two-word phrasal expression meaning to behave or operate badly in a way that you don't expect or that isn't doing what you want it to do.

动词“to act up”是一个双词短语表达，意思是以一种你不期望的方式表现或操作不当，或者没有按照你的意愿去做。

He rode beautifully and his horse always knew exactly when to be quiet, when to act up so that the Sheriff with his calm inscrutable smile could bring the horse back under control with one hand.

他骑得很漂亮， 他的马总是准确地知道什么时候该安静， 什么时候该行动起来， 这样治安官带着他平静而神秘的微笑就能用一只手把马控制住。

I should have to act up to the part, and tell her I've been cut to pieces in an underground dungeon and stuck together again rather badly; and she'd want to know exactly what the process felt like.

我应该尽本分，告诉她我在地下地牢里被砍成碎片，然后又粘在一起了，相当糟糕；她想知道这个过程到底是什么感觉。