给您举个例子哈 This smart boy is five years old This five-year-old boy is smart 用-连起来的时候 这仨词变成一个整体修饰boyMost of the kids in our school enjoy pop songs,——some hit songs on the Internet like Gangnam...
因为这是一个空,另外five-year-old连起来可以做为一个形容词来修饰名词。而用five year old 表达这句话可以这么说:I don't bilieve that this boy of five years old can paint such a nice picture.Most of the kids in our school enjoy pop songs,——some ...