黄恺的回答：five-day是用来作定语的，后面可以加名词，意思是“五天的”。 例句： The workforce have recently been calling for their working hours to be reduced.Many companies have accordingly switched to a five-day week. 工人们最近一直在呼吁缩短工作时间。许多公司于是转成了一周五天工作制。 A five-day working week affords us more leisure time. 每周五天工作制使我们有了更多的休闲时间。 five days可以作状语， 意思是5天。 例句： They haven't had a square meal for four or five days. 他们已经四五天没吃上一顿像样的饭了。 Soak the walnuts in brine for four or five days. 把核桃放在盐水里泡四五天。 似梦的年华、的回答：five days. 表示时间 五天； five-days 这个应该是 错误方法 five-day也是不完整的使用方法， 应该是 five-day-holiday 后面要加名词。 five days' 表示 五天的。 a five days‘ holiday============= a five-day-holiday |
