this is a glass of milk這句話對嗎? 我是從錄音帶聽的,所以不知道到底有沒有“a”. 是this is a glass of milk 還是this is glass of milk

this is a glass of milk這句話對嗎? 我是從錄音帶聽的,所以不知道到底有沒有“a”. 是this is a glass of milk 還是this is glass of milk

this is a glass of milk
glass量詞,一杯是可數的