I certainly know the answer.

我当然知道答案。

youdao

I certainly know that he has come.

我当然知道他来了。

youdao

I certainly know that, but I just want to see this year's sakura now!

我当然知道，但是现在的心情就是想看看今年的樱花啊！

youdao

I certainly know that, but I just want to see this year's sakura now!

我当然知道，但是现在的心情就是想看看今年的樱花啊！

youdao