1. 不幸的；运气不好的
    If someone is unlucky, they have bad luck.

    e.g. Owen was unlucky not to score on two occasions...
           欧文不幸两次都没有进球。
    e.g. Others were unlucky victims of falling debris.
           其他人都是不幸为坠落的瓦砾残片所伤。

2. 令人不愉快的；令人遗憾的
    You can use unlucky to describe unpleasant things which happen to someone, especially when you feel that the person does not deserve them.

    e.g. ...Argentina's unlucky defeat by Ireland.
           阿根廷队惜败于爱尔兰队

3. 带来坏运气的；不吉利的
    Unlucky is used to describe something that is thought to cause bad luck.

    e.g. Some people think it is unlucky to look at a new moon through glass.
           有些人认为透过玻璃看新月是不吉利的。