And then maybe vote yet again, just for luck.

而后，如果运气好，或许又可以再多投一次。

youdao

I'll take just a cup for luck.

为讨个吉利我就喝一杯。

《新英汉大辞典》

Nancy:Doing pot luck in someone’s house means that you just look through there frigerator for left overs and eat whatever’s there.

Do pot luck in someone’shouse就是在朋友家的 冰箱里找些剩下的食物，有什么就吃什么。

youdao

As I described in a recent Cato policy paper, this is more than just tough luck for a few companies.

FORBES: President's Fealty To Antidumping Lobby Kills Jobs And Depresses Growth

Call it faith, karma, good juju or just plain luck, but we have all hoped for just a little help in these difficult times.

FORBES: How Much Faith Do We Rely On?

As far as the farmers are concerned, it is just a case of bad luck for the British.

CNN: UK outbreak raises questions