组成的单词是user，例如：
1.‘ User fees ’ is just a politician's euphemism for taxes.“用户费”不过是政治家对“税款”的委婉说法。
2.You have to be able to describe things in a form that the end user can understand.你必须以终端用户可以理解的方式描述产品。
3.This is an entirely computer operated system which is very user friendly.这个系统完全由电脑操控，非常好用。
