He's a very private person.

他是个闷葫芦。

《牛津词典》

I'm quite a private person.

我是有很多私生活的人。

youdao

I'm a very private person.

我是一个很个人的人。

youdao

Throughout her life she was a very private person.

VOA: special.2010.07.04

"I'm a kind of pretty quiet, private person,and it's hard for me to share with others.

VOA: standard.2009.12.15

During an appearance on a national TV news show, she described herself as a private person who finds it's difficult to allow personal emotions to show through in her songs.

VOA: standard.2009.12.15

Despite his goal of global openness, however, Zuckerberg remains a wary and private person.

NEWYORKER: The Face of Facebook

What followed was a tug-of-war about what it means to be a private person with a public identity.

NEWYORKER: The Face of Facebook

They remembered him as "a great athlete" who "loved cycling and music", and as "a very private person".

BBC: Profile: MI6 spy Gareth Williams