quantityof和quantitiesof的区别（quantitiesof与aquantityof的区别）

区别就是两者单复数形式是不一样，具体的不同如下

quantity of为单数形式，中文意思是大量的;

It's just very time consuming to get such a large quantity of data

获取如此大量的数据非常费时

quantities of为复数形式中文意思是

大量的;

例句

＂ Not only are the quantities of phytoplankton in the ocean changing, ＂ she said, ＂ but the type of phytoplankton is changing ．＂

"不仅海洋中浮游植物的数量在变化,"她说,"而且浮游植物的种类也在变化。"