他们的区别用英语怎么说

您好！您问的是什么？请提供更多信息，让我能更好地回答您的问题。
如果您问的是两个事物之间的区别，那么可以使用以下英文表达：
The difference between X and Y
What sets X apart from Y
How X and Y are different
例句：
The difference between a cat and a dog is that a cat has whiskers and a dog has a tail.
What sets a smartphone apart from a computer is its portability.
How a car and a bike are different is that a car has four wheels and a bike has two.
中文翻译：
猫和狗的区别是猫有胡须，而狗有尾巴。
智能手机与电脑的区别在于智能手机更便携。
汽车和自行车的区别是汽车有四个轮子，而自行车有两个轮子。
希望这些信息对您有帮助！