风波的英文：
disturbance
crisis

参考例句：

Disturbances arose repeatedly.
风波迭起。

Raise a crisis
掀动风波

To stir up wind and move
陡起风波

The sensation dies off for the time.
那场风波一时又平静下来了。

(try to)calm a disagreement,violent dispute,etc
(试图)调解争端、平息风波等.

It's just a breeze. Take it easy.
那只是场小风波。别担心。

They have experienced many disturbances and understand the possible consequences of different ways of dealing with them.
他们经历的风波多，懂得事情的利害关系

At length I fell into some broils.
最后我终于遭到了一场小小的风波。

disturbance是什么意思：
n. 骚乱；干扰，打扰；忧虑；困扰；烦闷

emotional disturbance
情绪的困扰

It was considerate of you not to disturb us=You were considerate not to disturb us.
你不打扰我们真是考虑周到。

There has been a disturbance in the street.
街上发生了一阵骚乱。

suffer an emotional disturbance
情绪受到困扰.

It is inconsiderate of you to disturb our pleasure
我们高兴时你来打扰，实在是不体谅别人。

crisis是什么意思：
n. 危机；紧急关头；突变；小说中的关子

Weather a crisis.
平安渡过危机

The crisis peaked in July 1974.
那场危机在1974年7月达到巅峰。

The country weathered the energy crisis.
该国渡过了能源危机。

They were aware of a budding crisis.
他们意识到萌发中的危机。

precipitate a country into a crisis
使一个国家突然陷入危机