He tried to hide his nervousness.

他试图掩饰他的惶恐不安。

《牛津词典》

She laughed to cover her nervousness.

她笑了，想以此来掩饰自己紧张的心情。

《牛津词典》

In her nervousness she stumbled over her words.

她因紧张说话结结巴巴的。

《牛津词典》

Hot weather also increases dangers for people who must take medicine for high blood pressure, poor blood flow, nervousness or depression.

VOA: special.2011.08.09

Now why--and here is the question why do we get this nervousness about the relationship between what I know and how I know it arising at this moment?

问题是,为什么那时候我们对,我知道什么和我如何知道的关系如此神经紧张？

耶鲁公开课 - 文学理论导论课程节选

You don't have that nervousness that you are not good enough, or that you are too good.

你不会因为自己不够优秀，或者太优秀而紧张。

寻找幸福 - SpeakingMax英语口语达人

The company's wish may finally be coming true--thanks to consumer nervousness over lead-tainted toys.

FORBES: Toy Scare Could Help Wal-Mart

The last time we talked to her, she admitted to feeling a little bit of nervousness.

NPR: Got Snow? Add Bicycle.

The nervousness in the markets this week has been aggravated by rumors about mortgage losses.

NPR: Financial Markets Tumble Amid Credit Crunch