in 在里面
on 在上面
under， under在下面
between 站在两中间
beside 应该站旁边
behind 跟在最后面。
1、between: 表示在…（两者）之间
There is a table between us.
我们之间有张桌子。
There is a wall between the two houses.
两栋房子之间有一堵墙。
常搭配：between …and….
Mary sat between Tom and Jack.
玛丽坐在汤姆和杰克之间。
There is a library between the bank and the post office.
银行和邮局之间有个图书馆。
三者或以上的情况，若：
1）强调两两之间的对比，也可用between
What’s the difference between these three words?
这三个词之间的差别是什么
2）强调彼此之间的联系，也可用between
The relations between China and other countries are important.
中国和其它国家之间的联系是重要的。
