He's not really a very serious person.

他并非完全是一个非常严肃的人。

《牛津词典》

I'm afraid I'm not a very serious person.

恐怕我不是一个非常严肃的人。

《牛津词典》

He struck me as a very serious but friendly person.

他在我眼里是个非常严肃但友好的人。

《柯林斯英汉双解大词典》

But she was very serious, very motivated, very hard working type of person and really a kind of good Catholic girl her entire life.

VOA: special.2010.03.08

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

Without it, symptoms can range from digestive disorders to very serious illnesses including osteoporosis and bowel cancer.

BBC: NHS 'paid ?17 for gluten-free pizza base'

The second patient, also male, was in stable but very serious condition, the hospital said.

CNN: New SARS-like virus is a 'threat to the entire world'

The coalition, which commissioned the report, says it will give it "very serious consideration" before responding.

BBC: Commission tries to answer the West Lothian question