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》

I have sought God with them, but have not found Him.

我和他们一起寻找上帝，但没有找到他。

youdao

Such kill sites have been found in the Americas but not in Australia.

这种猎杀地点在美洲发现过，但在澳大利亚没有。

youdao

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

VOA: special.2009.12.26

"What we have found is that there is great and growing interest in greening the campus operations but what we are not seeing is a high level of interest around integrating sustainability in the classroom,".

VOA: standard.2009.12.08

Taliban captors have agreed to meet with South Korea's ambassador but have not found a suitable place, said Waheedullah Mujadidi, head of a delegation negotiating with the Taliban.

NPR: S. Korea-Afghan Diplomats to Negoiate With Taliban

"We have complained to the police but they have not yet found the thieves, "he said.

BBC: Battle to save ancient Sri Lanka

All three companies have strategic problems, but they may not have found the right answer in each other.

ECONOMIST: The Internet