requirement是要求的意思,和demand是需求的意思,而need则是需要的意思,它们的区别可以从以下例子看出:
There are so many demands for the property, we need to build more to meet the requirements, but we need to comply with all requirement from government. 对房产的需求太多了,我们需要建造更多来满足要求,但我们需要遵守政府的所有要求。
require是需要可以跟虚拟语气,demand是要求,need是需要,可以是情态动词也可以是实意动词