Question

“看清他的本来面目”用英语怎么说?好象是和什么come out of water有关，对吗？

Answer 1

come out of water是“橡宴浮出水面”的意思，
看清他的本来面目可以说成，his true colours come out of water. (他的本来梁早银面目浮睁败出了水面)

Answer 2

楼上说的也对行陆
还有其他档竖顷的说法可供参考
I finally recognise what kind of person he is.
比较口语的

You have to strip away the affected manners and speech to get at the real man underneath.
比较书纤陪面化吧

Answer 3

中国人在翻译英语时的通病是：逐字翻译，殊不知这样翻的效果携梁往往是中国人不会，外国人不懂。建议多看一些孝好美语电影或英文网站之类的，这句话可辩慎运以这样翻:I finally know what kind of people you are.

Answer 4

其实简单点用：see his true colors 完全可以。

Answer 5

Show his true colors!