Sometimes they act up and force you to take a stand.

Watch Ricky, he sometimes likes to act up in class.

注意里基, 他总是喜欢在课堂上捣蛋.

We need to act up and stand for what we believe in.

我们需要做出反应,坚持我们所秉信的.

We should act up to those principles and examples.

我们应遵循一些原则和实例.

Jack always used to act up when his mother wouldn't let him watch TV.

以前Jack的妈妈不让他看电视的时候,他就捣蛋.

I hat it when you act up.

你捣蛋的时候真令人讨厌.

The car's engine began to act up.

汽车的发动机开始出毛病了.

Little children always act up with their parents at home.

小孩子们总在家里和父母耍脾气.

The young herdsman briskly mounted a horse that was inclined to act up with an unaccustomed rider.

年轻牧民轻快地跃上一匹惯于对生人使性子的马.

The children always act up when their mother is out.

母亲不在家,孩子们总是调皮捣蛋.

If the pressure is too low, the heating system will act up.

如果压力太低, 供暖系统就会出毛病.

A patient should usually listen to his doctor's advice and act upon it.

一般说来,病人应该听从医生的劝告,并照医生的意见做.

Such strategies possess the common theory and act upon the common pattern and framework.

错误观念转变的教学策略有着共同的理论,并遵循着共同的模式或框架.

This is the tenth point which we urge you to accept and act upon.

此应请采纳实行者十.

They could act upon those conditions, beginning to change them to their own advantage.

他们能够按那些环境采取行动, 开始按自己的利益改变它们.

If what he proposes will benefit the people, we will act upon it.

你说的办法对人民有好处, 我们就照你的办.

This is the fourth point which we urge you to accept and act upon.

此应请采纳实行者四.

This is the ninth point which we urge you to accept and act upon.

此应请采纳实行者九.

They should have some principles to act upon.

他们必须有一些原则可以遵循.

We should have some principles to act upon.

我们应该有一些原则,以便遵循行事.

We must act upon order.

我们必须依命行事.