Many changes took place between the two world wars。
两次世界大战之间发生了许多变化。
两个点之间的时间范围：
Her sons， aged between 5 and 9， go to primary school。
她的儿子年龄在5-9岁之间，转到小学上学。
用来表示关系、选择和区别：
You have to choose between two or three different options。
你必须在两到三个不同选项之间做出选择。
Talks between France and Germany are continuing。
法国和德国之间的谈判仍在继续。
表示人或事物之间的共享：
They ate the whole birthday cake between them。
他们一同吃了整个蛋糕。
表示人或事物之间的资源或动作等联系：
We’ve created something between us。
我们之间已经建立了某种联系。
一些传统的观点认为between应用于两者之间，而among用于三者或三者以上的情形。但目前，这种用法已经过时。一些权威机构认为between和among均可以用于三者及三者以上的情形中。
✔ He divided his fortune between his four children。
✔ He divided his fortune among his four children。
但在一些情况下between和among不可以互换：
具体的时间点之间：用between
✔ The children were aged between 12 and 16。
X The children were aged among 12 and 16。