a couple of days和couples of days的区别是什么

a couple of days 急 couple of days we are visiting for a couple of days.怎么翻译,couple of days a couple of days和couples of days的区别是什么 In A Couple Of Days 歌词 用a couple of days造句 a couple of days.是指几天? It snowed a couple of days ago. He has caught cold for a couple of days.和He has had cold for a couple of days.哪个对?为什么? I might be in Shanghai in a couple of days. a couple of days 有这个说法吗? a couple of days是几天还是两天的意思? staying indoor for a couple of days.语法对吗 Your letter has been recieved for a couple of days ocuple of,the pair of和a couple of的区别 -----When did you buy the _____ of trousers? -----I bought them a _____ of days ago. A.couple;pair B.pair;pair C.couple;couple D.pair;couple 选哪个,为什么? he has.cold for a couple of days.a.caught b.hahe has.cold for a couple of days.a.caught b.had C.got d.been a couple of a couple of a couple of weeks