a length of cloth 一段布
an expanse of water 一片水
a stretch of land 一片土地
a piece of work 一件工作
a carton of milk 一盒牛奶
a piece of luggage 一件行李
a gallon of petrol 一加侖汽油
an ounce of gold 一盎司金子
a bar of chocolate 一大塊巧克力
a cloud of dust 一陣塵土
a jet of water 一股水
a pile of earth 一堆土
a lock of hair 一綹頭發(fā)
a basket of fruit 一籃水果
a pint of milk 一品脫牛奶
a liter of wine 一升紅酒
a roll of paper 一卷紙
a portion of food 一份菜
a scrap of paper一片紙
a spoon of medicine 一湯勺的藥
