People who have spent a lot of time in contact with animals often develop animal-induced allergies, some of them quite serious.

与动物接触过很长时间的人通常会患上对动物过敏的疾病，其中一些还很严重。

youdao

People who have spent a lot of time in contact with animals often develop animal-induced allergies, a significant percentage of which are quite serious.

与动物接触过很长时间的人往往会患上动物过敏，其中大部分是相当严重的。

youdao

He is quite serious, but he is good at telling funny stories.

他很严肃，但擅长讲有趣的故事。

youdao

"They're not quite there yet. There have been some serious efforts to deal with a combination of long-standing problems in the auto industry and the current crisis which has seen the market for new cars drop from 14 million [vehicles in annual sales to nine million.

VOA: standard.2009.03.30

A more recent side effect of Ambien that's quite serious is some people become--have the compulsion while they're sleeping to go driving, which is not good.

最近发现安必恩一个挺严重的副作用,有些人睡觉时,会有梦游驾车的冲动，这可不是好事。

耶鲁公开课 - 心理学导论课程节选

I think most people are quite serious about their studies.

我想绝大多数人都非常重视他们的学业。

图书馆经常人很多 - SpeakingMax英语口语达人

They have IQs that can boil water and are quite serious about their work.

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Should these perceptions be validated and take hold, the consequences could be quite serious.

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And now when we say an allegation, some are quite serious, you know.

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