前面加a
milk是不可数名词，没有复数形式，前面要加量词表示数量，例如 a cup of milk ，一杯牛奶。
例句：A cup of milk and an egg a day can.
每天一杯牛奶，一个鸡蛋能使我们身体健壮。 扩展资料
Drink， say， half a cup of milk， three times a day with food， and regularly.
比如，每次和半杯，一日随三餐饮用，并养成习惯。
She gave Tom a cup of milk and a piece of bread and told him to rest.
她给汤姆一杯牛奶和一片面包，并要他去休息一会儿。
I like to drink a cup of fresh milk each morning.
我每天早上喜欢喝一杯鲜牛奶。
