But they share something else: they have a town twinning agreement.

它们有一个友好城市的约定。

Town twinning agreements encourage people from the two towns to visit each other.

友好城市的约定鼓励来自这两个城镇的人们互相参观彼此的城镇。

Town twinning agreements are perhaps most useful for students and people who want to practise speaking another language.

友好城市的约定或许对于那 想练习讲另一门语言的学生人们最有用处。

Town twinning is not a new idea, but it has become more popular in recent years because it's now easier to find out about and visit other countries and towns.

友好城市不是一个新的想法，但是近几年它已经变得很受欢迎，因为这很容易了解和参观其他的国家和城镇。