他当时正从一次严重的流感中康复。

He was recovering from a severe bout of flu.

《柯林斯英汉双解大词典》

她在一次严重的跌倒中右腿骨折了。

She broke her right leg in a bad fall.

《柯林斯英汉双解大词典》

萨拉热窝遭受了几周以来最严重的一次重创。

Sarajevo took one of its worst poundings in weeks.

《柯林斯英汉双解大词典》

There was a severe crisis and so that again highlights the importance of having good bank regulation.

但这确实是一场严重的危机,也再一次强调了良好银行监管体系的重要性

耶鲁公开课 - 金融市场课程节选

But then the U.S. crashed into a huge well actually it was as worldwide recession of 1981-2.This was the biggest recession since The Great Depression.

但是之后，美国卷进了一个巨大的,事实上，是个世界范围内的经济衰退,于1981-1982年，这是自从大萧条以来,最严重的一次经济衰退。

耶鲁公开课 - 金融市场课程节选

They've been in a terrible trolley car wreck.

他们遭受了一次严重的电车事故。

耶鲁公开课 - 公正课程节选