girl是可數名詞還是不可數名詞?

　　例句：

　　Don was deep in conversation with the girl on his right.

　　唐與他右邊的女孩在專心交談。

　　Get dressed now, there's a good girl.

　　現在把衣服穿好，乖孩子。

　　He introduced me to a Greek girl at the party.

　　他在聚會上介紹我認識了一位希臘姑娘。

　　You wouldn't know what it means ─ it's a girl thing.

　　你不會知道那是什么意思，那是女孩子家的事。