For I know one thing, love comes on a wing.

我仅仅知道一件事，爱会随我一同飞临。

youdao

For I know one thing, Love comes on a wing and tonight I will be by your side.

我唯一懂得的是，爱会乘风而来，今夜我会回到你身边。

youdao

I had always been emphatic that I didn't know whom I would marry, but one thing was for sure — he would not be a farmer or dairyman!

我一直都是态度坚决地表明我不知道要嫁给什么样的男人，但有一点是肯定无疑的——他不会是务农的或养乳牛的！

youdao

The fact that I have one, you know, five hundred thousandth of the vote for one representative in congress is not the same thing as my having the ability to decide for myself how to use my property rights.

事实是，我只有一张选票，50万选民才票选出,一位国会议员,这与我能自己决定如何行使我的财产权,是两回事。

耶鲁公开课 - 公正课程节选

But seeing their bill and our bill, I know one thing for sure -- we'll have a great bill when we put them together.

CNN: Pelosi asks to see better way than public option

After the first two days I know one thing for sure, that this is going to be a cracker of a Test match, which could all hinge on one great partnership, one great innings or one more match-winning bowling spell.

BBC: Justin Langer's key moments

But one thing I know for sure -- since he took office, Barack has been fighting for us.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event