You can try your best to impress the interviewers but in the end it's often just a question of luck.

你可以尽最大的努力给面试者留下深刻的印象，不过最终常常只是视乎运气。

《牛津词典》

You must develop a mentor who has a stake in your career. And this takes effort and luck.

你必须要找到一个在你职场中举足轻重的导师，但这需要努力和运气。

youdao

Unfortunately, she says, if it's not in your genes, you're out of luck.

不幸的是，Fu认为如果不是存在于你的基因内，那只能说是你运气不好了。

youdao

In some cases, the back of the head could be more expressive than the front, in which case this is your opportunity and I wish you luck.

有些时候,后脑勺确实比正脸更有表现力,这才是你们的机会,祝你们好运

耶鲁公开课 - 基础物理课程节选

And so as you look in the future obviously the best thing you would say to Zimbabwe, obviously, this was implied in your earlier good luck, would be if today when the count comes through finally on Tuesday, Mugabe would be defeated.

BBC: News Online

But if you've used a state-only dodge--say, evaded sales taxes on that De Kooning in your living room--you may be in luck.

FORBES: Magazine Article

Good luck in your upcoming races, may these 26.2 life lessons carry you through your training, and your first IPO.

FORBES: 26.2 Ways Running A Marathon Can Help You Start Your Own Company