He told her he had only shouted for luck.

他告诉她，他大喊一声只是为了碰碰运气。

youdao

He has kept the figure of Buddha for luck.

为了图吉利他一直保存着这尊佛像。

《新英汉大辞典》

Take something blue. It's for luck.

挑件蓝色的东西吧，求个吉利。

《牛津词典》

During those long summer days, The Luck was carried up the mountain to the place where the men were digging for gold.

VOA: special.2009.06.06

Most languages around the world have a different word for luck and risk--or luck and fortune.

世上的大多数语言,对运气和风险,或者说运气和机遇,都有另一种表达方式

耶鲁公开课 - 金融市场课程节选

Now some of this might be luck but I don't think it's all luck because he's done this consistently for so many years.

也许这里面有运气的成分,但我不认为这都归因于好运,因为他一直从事着这项事业

耶鲁公开课 - 金融市场课程节选

Whether the Suck for Luck campaign has any merit, one thing is absolutely sure.

FORBES: 'Suck for Luck' Strategy a Safer Investment with NFL's New Rookie Wage Scale

And I kissed her on the cheek, and I said, 'That's for luck.

CNN: Former 'Family Feud' host Richard Dawson dies

"Imagine actors in the future crossing the theatre and perhaps paying homage to Shakespeare as they go on stage for luck, " she added.

BBC: Shakespeare's first theatre found