The other is to restore some of the evolutionary and ecological potential that has been lost in North America.

另一个是对一些在北美丧失的进化和生态潜力进行恢复。

youdao

The original manuscript has been lost.

原稿已经遗失。

《牛津词典》

Yet plenty has been lost too, even in cultures that still live to eat.

然而，即使在仍以饮食为生的文化中，也有很多吃的已经消失了。

youdao

The Global Heritage Fund says over seventy percent of the environment in this area has been lost in the past ten years.

VOA: special.2010.11.03

And it may well be that no poem has ever been since Paradise Lost published with line numbers in its very first edition.

只有《失乐园》首次印刷的时候把行数印上,之后的诗歌都没被这么出版过。

耶鲁公开课 - 弥尔顿课程节选

It has been argued, and I think this is a brilliant point, that the most important word in Paradise Lost is or, the conjunction.

或者广受争议的，我个人认为是出色的一个想法，即中最重要的词就是这个连词，或者。

耶鲁公开课 - 弥尔顿课程节选

Either some meaning has been lost in translation or the owners are trying to out-baffle English-speaking tourists.

BBC: A golden slice of old Tokyo

This decline represents the realization that some as-yet-to-be-defined value in the future has been lost.

FORBES: Apple Without Steve Jobs

"Senior-level attention to clients has been lost at agencies in recent years, " says Owen, 53.

FORBES: Magazine Article