Police have spent weeks dredging the lake but have not found his body.

警察已经花了几周时间在湖里打捞，但是仍未发现他的尸体。

《柯林斯英汉双解大词典》

For instance, new technologies that are building upon existing technology have not found their footing well enough to appeal to a mass audience.

例如，建立在现有技术基础上的新技术还没有建立足够的基础来吸引大众。

youdao

We have not found a substitute for him.

我们还没有找到一个代替他的人。

youdao

"I followed your advice," he said. "But I still have not found the letter."

VOA: special.2009.12.26

We have not yet found them all, Lords and Commons, nor ever shall do, till her Master's second coming.

我们还有找到这些碎片，上帝和普通人，我们也不会去找，知道她的主人第二次来。

耶鲁公开课 - 弥尔顿课程节选

By the way, some of it were not pleasant; the cultural wars I found very unpleasant, although it may have been the most important kinds of thing I did.

顺便说一下，这个经历并不是一直很愉快;,我自己不怎么喜欢文化论战，虽然,我最重要的工作很可能是在那个时期。

普林斯顿公开课 - 人性课程节选

So far, a number of epidemiological studies have not found evidence that they do.

ECONOMIST: Scientific justice

Both Mr Hathaway and Mr Austin were made redundant and have not found work since.

BBC: Location seals factories' fates

Massive and expensive, most wind and sun-powered innovations have not found a cost-effective way to penetrate those markets.

FORBES: Social Enterprise Spotlight: Portable Solar Lighting