Hayley教口语，“总数”用英语怎么说？

a collection or mass, especially of something that cannot be counted

(尤指不可数事物的)数量;数额;量;总数

amount : 强调整体，指把所有数量、重量及度量归并在一起得出的总数。

number : 指人或物的数目，强调数的概念。

They didn't deliver the right amount of sand.

他们运来的沙子数量不对。

He paid regular amounts of money to a charity.

他定期向一家慈善机构捐一笔钱。

You wouldn't believe the amount of trouble (= what a lot of trouble) I've had with this car. 你决不会相信这辆汽车给我带来了多少麻烦。