为什么修饰ten minutes 要用less than而不用fewer than?

为什么修饰ten minutes 要用less than而不用fewer than? 为什么用less than ten minutes而不是fewer than? There are less than 50 students in our class.这里为什么不用fewer而用l 少于 less than为什么是less less不是修饰不可数名词的么,把less换成fewer可以么 少于10美元 英语 为什么用less than 不用fewer than? fewer than 与less than? less than 和 fewer than 请问是less than 5 minutes 还是fewer than 5 minutes 关于fewer than 和 less than fewer than与less than的区别 less than 和fewer than区别用法 fewer than 和less than的区别