a large quantity of;a large number of; quite a lot;a large a

a large quantity of 可数名词 a large number of 可数名词
a large quantity of 译为“许多,大量”其谓语由短语中的“quantity”形式决定.它是单数,不管修饰的是什么样的词,一律用单数.如果是quantities,则谓语全用复数.只与quantity的形式有关.
a large number of 也译为“许多,大量”不管修饰的是什么样的词谓语一律用复数
a large quantities of 与a large number of可替换
quite a lot 可数不可数都可以 a large amount of 可数名词