I am a quiet person, serious work, low-key person.

我是一个默默的人，认真的做事，低调的做人。

youdao

That rich man in our town is a very low-key person.

我们镇上的那个有钱人是个相当低调的人。

youdao

Low-key person also is a kind of wisdom.

低调做人也是一种智慧。

youdao

Low-key person also is a kind of wisdom.

低调做人也是一种智慧。

youdao