例句：

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

　　我們都認(rèn)為我們輸了是運(yùn)氣不好。

　　Thirteen is often considered an unlucky number.

　　十三常被認(rèn)為是不吉利的數(shù)字。

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

　　有些人認(rèn)為從梯子下面走過(guò)不吉利。