You can say something like, "I remember you said something very interesting yesterday and wanted to talk about it some more, but I'm new here and don't remember your name yet. Would you mind telling me again?"

你可以这样说：“我记得你昨天说了一些有趣的事情，还想多谈谈，但我是新来的，还不记得你的名字。你介意再告诉我一遍吗？”

youdao

And you know, we've been through this kind of period before; I remember how depressed everyone was in the mid-70s, and yet we found new sources of dynamism.

而你知道，我们在过去经历过这样的时期；我记得在70年代，每个人是多么的沮丧，但我们找到了新的动力。

youdao

Remember ye not, that, when I was yet with you, I told you these things?

我还在你们那里的时候，曾把这些事告诉你们，你们不记得吗。

youdao