Many critics say Weezer has lost all connection to the alternative band it once was.

VOA: special.2009.11.20

So,Once they are lost in response to a toxic sound or to an antibiotic it cannot be regenerated by natural means.

一旦因噪音或抗生素遭受损失,就难以再生。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Actually, the truth is I sort of almost felt that once you were there, it's kind of easy to get lost there, to forget about it.

实际情况是,我觉得一旦你生活在那里，似乎很容易忘记这种冲突。

普林斯顿公开课 - 人性课程节选

Some of Mr Menem's opponents have long argued that his efforts to cling to office have been motivated by fear of sleaze-related prosecution once he lost it.

ECONOMIST: Argentina��s awkward transition

Trump coaches Richard on how to amass a fortune, and then how to do it again once you've lost it all.

CNN: The Quest for wealth

Once we have lost it, we cannot get it back.

BBC: The perfect trip: China