three-day和three day有什么区别

three-day和three day有什么区别 every three days 和very third day有什么区别 three day off three meals a day on day three take a three-day holiday和take three day holiday的区别? three day 要+s么? three- day,three days,three days',three day's区别?three- day + timethree days + timethree days' + timethree day's + time都有什么区别?都在哪个时态里用?（可答可不答） three days' trip 和 a three days' trip1 three days' trip2 a three days' trip3 a three-day trip哪两个是对的 three days,three-days,three-days'和three-dayWe'll have a （ ）holiday.What are you planning to do?A.three daysB.three-daysC.three-days'D.three-day一定要告诉我理由,光一个答案没用 in three days与in three-day time有什么区别 是every three day还是every three days(每三天) every three day;every three days应该用哪一个? other day 有这用法吗?the other day 与another day 区别,three others day 与 the other day 的区别?以及another,other ,the other 和others 的区别（回答简单点） ( )We had a ___ holiday last week.A.three-days B.three days C.three-day D.three day The Whites went for sightseeing during the_____holiday.A.three days B.three-days C.three-day D.three day I have a （ )holiday.A.three-day B.three－days C.three days D.three day‘s What day is it in three days'