every three days是每隔3天一次,还是每隔2天(每3天)一次?

every three days是每隔3天一次,还是每隔2天(每3天)一次? every third day每隔2天=every three days每3天?every other day （每隔一天）=every 2 days 每2天every third day每隔2天=every three days每3天every forth day 每隔3天=every 4 days 每四天 every three days，every three days，every 4 every three days 是表示每隔三天还是每三天一次（也就是没隔两天） 是every three day还是every three days(每三天) 我参考书上说每隔两天是every third day,每三天every three days,他俩相等,怎么回事啊,无语了,紧急!每隔两天不是every second day every three every other day 每隔一天 every third day每隔2天 every forth day 每隔3天 ［误］ I will come here to help you each three days.［正］ I will come here to help you every three days.［析］ every three days 为每三天,即每隔二天,而every other day为每隔一天.为什么要用every而不用ea every other three days =every four days 对不? every three day;every three days应该用哪一个? every second day、every other day、every two days都是每隔一天的意思吗? ___,Monday,Wednesday,and Friday.A.Every day B.Every three days C.Every few days D,Every other dayWhy? every other 后面能跟复数名词么?看到网上的一个资料,这么写3 “every other ＋基数词(大于或等于2) ＋复数名词” 意思是“每隔……”.例如：I have to work out every other two days.我每隔两天就要作一 every three days 和very third day有什么区别 按要求完成句子：Lucy usually cleans the cage every three days.(对划线部分提问)every three days划线 He went there every ____. A.three day B.third days C.three days D.a three dayWhy Every five days 和every fourth day都是每隔四天的意思吗? 大后天,或是大大后天到底是怎么说的英文里面?in 3 days,;three days from today;three days later到底哪种是啊. 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