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

友好城市的约定鼓励来个城镇的人们互相参观彼此的城镇。

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 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。

We'd be full twinning in the exact same outfit.

我们会穿着相同的衣结对。

This is an example of twinning or gemination. Here are some more examples.

是孪生或双生的一个例子。 里还有一些例子。

It's a cute photo: Kim Kardashian and the long-dead Egyptian priest are essentially twinning.

是一张可爱的照片：金·卡戴珊和死去已久的埃及牧师本质上是双胞胎。

This twinning allows for a particular kind of deformation, termed 'pseudo-elasticity', where the material can undergo considerable strain without suffering any permanent damage.

种孪生允许一种特殊的变形，称为“伪弹性”，材料可以承受相当大的应变而不会遭受任何永久性损坏。

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，因为很容易了解和参观其他的国家和城镇。