seven-day winter holiday / seven days`time 区别seven-day winter holiday seven days`time 这种用法的区别如何解释?

seven-day winter holiday / seven days`time 区别seven-day winter holiday seven days`time 这种用法的区别如何解释? on winter day 还是 in winter day seven-day seven-days seven day各有什么区别 这两道英语题有什么区别吗1.Mary is __girl and she can look after herself wellA an eight years old B an eight-year-old C an eight year old D an eight-years-old2.They have ___ in octoberA seven day holiday B seven days hol on a winter day may day in winter holiday One day in winter 歌词 I have a ()vacation.a.seven day b.seven-day c.seven-days d.seven day's it is winter.at seven o'ciock,itisstill d( ) we have seven lessons every day.（seven划线提问 We have seven ctasses every day(对seven提问） What did you do during the _____ holiday?A)seven day B)seven days C)seven-day D)seven-days We will have a ___holiday A seven day’s B seven―day C seven―days D seven days We will have a ____holiday soonA seven—day B seven days C seven day's D seven _days We have seven ( )at school every day We have seven classes every day. a week has seven day.改错 It was a cold winter day.