形式有: 

loses，losing，loser...

The children lost their mother .

孩子们失去了母亲。

Families have lost loved ones .

有的家庭失去了亲人。

Has football lost its magic ?

足球已经失去魅力了吗

However david never lost faith .

但戴维却从不失去热情。

I lost some niche customers .

我失去了一些特别的顾客。