between/bɪ'twiːn/

1.preposition

(in space) 在…中间

He was sitting between two old ladies.
他坐在两个老妇人中间。
2.preposition

(in time) 介于…之间

between 9 and 10 tomorrow
在明天9点至10点之间
3.preposition

(in amount,age etc) 介于…之间

people aged between 18 and 30
年龄在18至30之间的人们
It weighs between 30 and 40 kilos.
它重约30至40公斤。
4.preposition

(among) 之间

the relationship between doctors and patients
医生与患者之间的关系
5.preposition [fig] 
之间

the obstacles that lay between him and success
摆在他和成功之间的障碍
6.adverb

in between (in space) 在…中间

Court Road and all the little side streets in between
考特路与所有那些夹在中间的小街道
7.adverb

(in time) 期间

He had to make two flights, with a 5-hour wait in between.
他得坐两次航班,期间要等5个小时。
to choose between
 [+two things] 从中选一个
to be shared/divided between people
由大家一起分享/分用
the road between here and London
这里和伦敦之间的道路
we only had 5 pounds between us
我们俩一共只有5英镑
between you and me, between ourselves
私下
8.adverb

用法参见 among