Hayley教口语，“彻底转变”用英语怎么说？

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a sea change

a complete change in someone's attitudes or behaviour.

某人态度或行为的彻底转变;突变，突发性彻底转变

A sea change has taken place in young people's attitudes to their parents.

年轻人对待父母的态度已经发生了三百六十度转变。

There has been a sea change in attitudes to drink-driving, thanks to greater public awareness of the problem.

由于公众对酒后驾车问题的意识增强，人们对酒后驾车的态度发生了巨大变化。

She has got a sea change after her mother’s death.

在她妈妈去世之后，她整个人有了翻天覆地的变化。