乖, 一般没有a quantity of这样表达。你要么用a large/small quantity of或者the quantity of~好了,说重点,看仔细了~a large/small quantity of + 复数名词 + 谓语动词复数a larg360问答e/small quantity 且责模争场题of + 不可数名词 + 谓语动词单数quantities of + 复数名词、不可数名词 + 谓语动词复数the quantity of + 复数名词、不可数名词 + 谓语动词单数联使参间费造句就算了,我要去吃饭liao~~~