I hardly know you.

我几乎不了解你。

《柯林斯英汉双解大词典》

I hardly know you any more!

我几乎认不出你了！

youdao

We hardly know each other.

我们彼此还不大认识呢。

《牛津词典》

You will hardly know who I am or what I mean, But I shall be good health to you nevertheless.

VOA: special.2009.04.12

That's because, as the editor of the English language version of the Phnom Penh Post says to me, somewhat ruefully, they know hardly any Cambodians will read or hear it.

BBC: Cambodia: Silenced by a brutal past

Very interesting because it's, you know, hardly over.

NPR: Political Junkie: Clinton, Lieberman and Holder

But you'd hardly know she was gone, judging from the stream of CDs flowing from her record company.

NPR: Maria Callas, The Legend Who Lived for Her Art