sufficient,enough,adequate,abundant都表示“充足的足够的”有什么区别?

问题描述:

sufficient,enough,adequate,abundant都表示“充足的足够的”有什么区别?
要有例句分别能显示出他们的差别.

adequate表示在数量或质量上足以满足特定的标准,强调刚好够用,没有多余.如:He doesn't earn a large salary but it is adequate for his needs.他挣钱不多,但也够用了 abundant含义为quite enough"充余,绰绰有余",指...