why something is so popular in the world?与 why is something so popular in the world?的区别?

问题描述:

why something is so popular in the world?与 why is something so popular in the world?的区别?

why something is so popular in the world?

为什么在世界上有些东西是如此受欢迎?

why is something so popular in the world?

为什么在世界上是如此的受欢迎?