This is just between you and me这句话的意思就是“你知我知，天知地知”，说明两个人之间非常信任，或者，这个秘密是绝对不能泄露给外人的哦。
Between you and me 这个片语还有两个变体，一个是between ourselves，另一个是 just between you and me and the bedpost / four walls / gatepost / lamp-post.
我们来看几个例子：
Just between you and me, it was Janet who proposed to Bill rather than vice versa.
通常要说什么秘密之前，都要先说between you and me。
还有两句cool一点的表达哦，一定要小声说哦：
This doesn’t leave this room.
This is for your ears only
这两句习惯表达的意思都是Don’t tell anybody (about it)，就是不要告诉别人哦．
大家可以在生活中用上面所讲的几个句子，特别是你要跟你的密友说一些秘密的时候哦！！