Sunday可数吗

　　例句：

　　We work every day except Sunday.

　　我们除星期天外每天都工作。

　　The driver was rostered for Sunday.

　　这名司机被安排在星期日值班。

　　We walked off a heavy Sunday lunch.

　　我们星期日午餐吃得特别多，散散步帮助消化。