a drop of water 一滴水;

　　a basin of water 一盆水;

　　a mug of tea 一大杯茶;

　　a stagnant pool of water 一潭死水;

　　a barrel of beer 一桶啤酒;

　　a bucket of milk 一桶牛奶;

　　a glass of milk 一杯牛奶;

　　a carton of fruit juice 一盒果汁;

　　a jug of fruit juice 一大杯果汁