一、a large number of 和a large amount of意思都是大量的,很多。
二、两者区别。
1、a large number of 只能修饰可数名词。
如:A large number of books have been stolen from the library. 图书馆遗失了很多书.
2、a large amount of只能修饰
不可数名词。
如:
(1)、The gang finally fled with a large amount of cash and jewellery.该团伙最后携大量现金和珠宝逃之夭夭。
(2)、The system wastes a large amount of water.这套系统浪费了大量的水。
(3)、By any yardstick, that's a large amount of money.用任何标准衡量, 那都是巨大的金额.