duck是不是可數名詞

　　duck用作名詞的用法例句

　　The special today is pressed duck with walnuts.今天的特色菜是桃仁酥鴨。

　　They visited a duck farm operated by the corporation.他們參觀了這個公司辦的養鴨場。

　　You cannot teach an old duck new tricks.老鴨學不會新把戲。