masses of 的意思是“很多” ,它的后面可以接复数名词,也可以接不可数名词,不能接可数名词的单数形式.如果 masses of 后接复数名词作主语,谓语动词要用复数形式；如果 masses of 后面接不可数名词作主语,谓语动词应该用单数形式.

masses of

大量的

It has masses of flowers each year.

它每年都开许多花。

The broad masses of people and armymen fought staunchly with one heart and one mind to defeat the aggressors.

广大军民同心同德，坚决打败入侵者。

They were the pioneers of gender equity, in their useful, adaptable clothing, which was both made for the masses and capable of self-expression.

她们是两性平等的先驱，体现于她们非常实用的、适应性强的服装上，既适合大众，又能表达自我个性。