seven-day seven-days seven day各有什么区别

seven-day seven-days seven day各有什么区别 seven-day winter holiday / seven days`time 区别 the seven days holiday 与 the seven-day holiday 的区别! a seven-day holiday 和a seven days' holiday的区别 a seven-day holiday 和a seven days' holiday 还有a seven day's h 英语年龄的表达he has a ----- daughterA seven-day old B seven -days- People enjoy ____ holiday 是填a seven-day还是seven days为什么 a seven-day holiday和 a seven day' holiday的区别 seven seven day歌词的大意 seven days seven longly night We will have a ___holiday A seven day’s B seven―day C seven―