a pair of a loaf of a packet of a comb of这些量词啥意思?

a pair of a loaf of a packet of a comb of这些量词啥意思? 什么词性前必须用 如 a piece of / a loaf of / a pair of / 这些词来修饰. a pair of shoes a pair of couple a pair of a pair of Need a pair of a loaf of bread这个of 表示什么? where can i buy a loaf of bread?（回答） a bar/bottle/cup/loaf/bag/glass of的区别 Who looks like half a loaf of bread? who looks like half a loaf of bread a pair of gloves还是a pair of glove 是a pair of glass 还是a pair of glasses a pair of skate还是a pair of skates a pair of glasses复数 a pair of trousers是什么意思 a pair of shoes中文