在格拉斯哥和爱丁堡之间有定期的火车服务。

There is a regular train service ___between Glasgow and Edinburgh.

我们需要在74号和9号高速公路之间建一条高速公路连接线。

We need a motorway link ___between the motorways 74 and 9.

这两个孩子之间的友谊很美好。

The friendship ___between the two children is beautiful.