Well, I'll keep that in mind.好啊，我会记在心里的

in mind:在心里

That's something we have always to keep in mind.

那是我们应该经常记在心里的。

I shall bear in mind your advice.

我将牢记你的忠告

And I'll join in.我会和你一起嚎叫的

join in:参加, 加入

They are going to join in the singing.

他们将参加唱歌。

They pestered her to join in the scheme.

他们不断要求她参与那计划。