This is confidential, but I know that I can rely on your discretion.

这是机密，不过我知道你靠得住。

《牛津词典》

I know that I can repair this car.

我知道我能修理这部车。

youdao

But most of all, I know that I can handle anything.

但是最重要的是，我知道自己可以应对任何事情。

youdao

Sam Kass said: "After hearing fifth graders cheer for broccoli, I know firsthand that chefs can have a huge impact on kids' health and well-being."

VOA: special.2010.06.07

So, I know this is a simple example and I can see everyone pretty much got it right, and probably those that didn't actually made some sort of clicker error is my guess.

分别是质子和电子,我知道这是个很简单的问题，你们大部分人都做对了,我猜那些没做对的大概是因为点错了。

麻省理工公开课 - 化学原理课程节选

I like the fact, you know, that you can walk around. You have restaurants and cool bars, and you know.

在这里你可以到处走走。到处都有餐厅和酒吧，这些我都很喜欢。

旧金山的夜生活 - SpeakingMax英语口语达人

In five sets, I always know that I can come back, I can play better, I can finish well.

WSJ: Wawrinka Shows Way to Beating Tennis's Big Four

"Towards the end of the season I managed to played three games in a week for Spurs so I do know that I can do it, " added King.

BBC: Ledley King gives England fitness pledge for World Cup

Because I know that I can work while travelling now.

FORBES: All High Speed Rail Programs Must be Cancelled and the Numbers Calculated Again