between

UK //bɪˈtwiːn//US //bɪˈtwiːn//

词源

源自中古英语 'betwene'，来自古英语 'betweonum'，意为“在两者之间”。

between you and me — 用于表示秘密或私下的话，意思是“只有我们两个人知道”。

“Between you and me, I think he's going to quit his job soon.”

（就我们俩知道，我觉得他很快就要辞职了。）

in between — 指在两个事物或时间点之间的状态或位置。

“We have a short break in between classes.”

（我们在两节课之间有一个短暂的休息时间。）