a seven-day holiday 和a seven days' holiday的区别
问题描述：
a seven-day holiday 和a seven days' holiday的区别
有没有a seven day's holiday 这种用法
还有in_____time里面用什么.也是SEVEN 和DAY
答
a seven-day holiday 和 seven days' holiday 有相同意思,seven-day 是形容词,seven days' 是短语作为形容词.加还是不加 a 要看句子的意思,例：We took a seven days' holiday in the Mediterranean.We went on seve...