请看下例例句,为什么decades与advances要加S.请说解,另外,提供名词变复数时,需要根据哪些成份变的?Inthelastdecades,advancesinmedicaltechnologyhavemadeitpossibleforpeopletolivelongerthaninthepast.

Question

请看下例例句,为什么decades 与advances 要加S.请说解,另外,提供名词变复数时,需要根据哪些成份变的?
In the last decades,advances in medical technology have made it possible for people to live longer than in the past.

Answer 1

在过去的几十年,先进的医疗技术已经使得人们比过去能活更长的时间了.decade [ 'dekeid ] n.十年,十年期；十 dozen [ 'dʌzən ] n.十二个,一打 还有hundred thousand ,这类词,前面有具体数字的时候,都不加S...