a couple of weeks 正确还是couples of weeks 正确

a couple of weeks 正确还是couples of weeks 正确 a couple of weeks 意思 every couple of weeks _____ ______will she come back?In a couple of weeks Had a ton of break downs at work in the last couple of weeks couple of times a couple of time a couple time couples of ti couples of 和 a couple of 的区别 英语翻译A couple of weeks ago a philosophy professor at Fudan Un 英语翻译It was a winter morning,just a couple of weeks before Ch 英语翻译It was a winter morning just a couple of weeks before Ch It was ____ we had stayed together for a couple of weeks tha 吧he armed himself a couple of weeks ago and bega