You have to be good but not an expert at everything you do, and you have to know when to be flexible and when to ask for help.

你不需要事事都是专家，但是必须事事都能做好，并且你得知道什么时候灵活多变，什么时候寻求帮助。

youdao

He's an expert at getting his own way.

他在如何达到自己的目的方面很在行。

《牛津词典》

He was an expert at finding his way, even in strange surroundings.

他是个找路的高手，即使在陌生的环境中也一样。

《柯林斯英汉双解大词典》

But it takes a great deal of skill to become an expert at wheel throwing.

VOA: special.2009.09.09

Mike Steele is an ocean expert at the University of Washington in Seattle.

VOA: special.2009.10.27

John Fortieran is an expert at the American Enterprise Institute in Washington "You do see a lot more worry in the public opinion polls," ,.

VOA: standard.2009.09.04

"North Korea is an expert at crisis diplomacy, or crisis marketing, " Mr. Shin said.

WSJ: North Korea Fires Missiles Into Sea

The director of Nicaragua's National Police described him as an expert at violating computer security systems.

CNN: Fugitive on 'Most Wanted' list returned to U.S.

Quentin Hardy, the Silicon Valley bureau chief, is an expert at playing to a camera.

FORBES: Inside Forbes on Fox