彼此相距很远的英文：
few and far between
prep. 在...之间；私下；来往于…之间；由…分担（分享）；总共
adv. 在中间
- Between ourselves
秘密地说 - Interaction between systems or between properties of a system.
系统间或一个系统的各种特性之间的相互作用。 - You have your choice between the two.
在这两个之中，你有选择权。 - Between friends all is common
朋友之间不分彼此 - Between devil and Blue sea
〞(进退维谷),〞
