我确实了解鸡。

I do know about chickens.

youdao

他确实了解犯罪，所以我想有些人不得不重进监狱很多次。

He did know about crime, so I suppose there are folks that just have to go back to prison several times.

youdao

那是因为她确实了解。

”Because she did understand.

youdao

People ask all the time, but I don't really understand.

虽然总有人问起，但我确实不是很了解。

百慕大出身 - SpeakingMax英语口语达人

That is true of all of human societies that we know anything about down to the earliest possible exception, I suppose; well, it depends what you think is earliest.

确实,在所有我们了解到的,人类社会中,我想"最早的"可能除外,当然,这取决于你是怎么理解"最早的"

耶鲁公开课 - 古希腊历史简介课程节选