She felt a sudden surge of anger.

她突然感觉怒火中烧。

《牛津词典》

If a website experienced a sudden surge in popularity, more servers were needed to meet demand.

如果一个网站突然变得大受欢迎，就需要增加更多服务器满足需求。

youdao

Another problem could emerge if a sudden surge in defaults was accompanied by a further widening in spreads.

如果大量违约突然出现，并且随后利差(spreads)进一步扩大，就可能出现另一个问题。

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The surge came from a sudden release by a hydropower dam further up the river in the North's territory.

VOA: standard.2009.09.07

But this sudden surge in republican spirit in the media suggests that things can change fast.

ECONOMIST: Scandinavia��s republicans

Could China's new friendliness towards Taiwan be a result of a sudden surge of confidence in Beijing?

ECONOMIST: Taiwan and China

Indeed America's export growth has been much stronger (a sudden surge in imports was behind the second-quarter trade gap).

ECONOMIST: The world economy