very serious

基本解释

They were very serious.
他们是很认真的。
In my view the problem is not very serious, and the policy response will be moderate.
但在我看来，这一问题还不是很严重，而且政策上的反应将是温和的。
And there are some very serious reasons that led to the condom’s production and some very serious reasons why they have the potential for some very severe consequences – both good and bad.
的确有一些十分重要的原因导致了此类安全套的生产，并且还有一些十分重要的原因来解释它们可能会产生非常严重的影响——包括好与坏。

But she was very serious, very motivated, very hard working type of person and really a kind of good Catholic girl her entire life.
She lived in New York for a short time, but she was afflicted with lupus, a very serious illness, and she died at the age of 39 in 1964.
她在纽约度过一段短暂的时光，但她饱受狼疮，一种严重疾病的折磨，最终逝世于1964年。
耶鲁公开课 - 1945年后的美国小说课程节选
I think that if we don't address it, it has the potential to have very, very serious effects
我觉得如果我们不解决的话，可能有非常非常严重的后果
全球变暖和发达国家 - SpeakingMax英语口语达人