a number of与an amount of的区别及意义要详细一点噢,急这算什么区别，我要考试了，

an amount of,a number of,the amount of,the number of的意思与区别? A great number of 与 The number of 的区别 a number of 与the number of用法 区别 比较 the number of与a number of的区别 the number of 与 a number of都是什么意思 the number of与a number of有什么区别? a number of与the number of的区别 A number of students,请问 A number of 与the number of students有什么不同 a number of和an amount of的区别? a mount of 与a number of 与the number of 的区别 an increasing number of用法 用an increasing number 和a growing number of 谢谢造句 an amount of,a number of,the amount of,the number of的意思与区别?四个词组的意思、列句与后面应接什么词详细说一下…… a number of 与a lot of的区别 a lots of 与 a number of 的区别 a lot of 与 a number of 的区别 a lot of 与 a number of 的区别 the number of,a small number of,a number of.