a pair of 和a couple 有什么区别啊?

a pair of couple a couple of 和 a pair of 的具体区别, 如何区分a pair of 和a couple of? a pair of 和a couple 有什么区别啊? 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? a couple of ,a piece of ,a pair of ,a bit of 的区别 He is not careful.He went to school in _____shoes,but not ____onesA.a pair of,a couple of B.a pair of ,a pair of C.a couple of ,a pair of D.a couple of a couple of 选择哪个?帮我解析下 a couple of a couple of a couple of weeks a couple of造句, a couple of a couple of a couple of a couple of与a pair of的区别这两个怎么区别啊?比如：I found a ____ of socks in the bedroom but they don't make a pair.应该填couple还是pair呢?为什么? 请问：“a couple of years”和“a couple of year”分别是什么意思?其中有错么? 可以说a couple of couple?一对夫妇 可以说a couple of couple不啊? Love,is to a pair of strangers into a couple,and then couples back into a stranger's silly