Definition: connecting two or more places, things or people Level: A2
费城和华盛顿之间有定期的火车服务。
There is regular train service ___between Philadelphia and Washington.
我在电影院坐在我的两个朋友之间。
I sat ___between my two friends at the movie theater.
公司之间的协议昨天签署了。
The agreement ___between the companies was signed yesterday.
