luck的形容词不幸的

例句：

We all felt (that) we were unlucky to lose.

我们都认为我们输了是运气不好。

Thirteen is often considered an unlucky number.

十三常被认为是不吉利的数字。

Some people think it's unlucky to walk under a ladder.

有些人认为从梯子下面走过不吉利。