supper是可数名词吗

After supper he'd put his feet up and read.

晚餐后他会放松休息一下，读点什么。

Supper is from 5:00 to 6:00 in the evening.

晚餐是在傍晚5至6点间。

Rennie had eaten his supper in the canteen.

伦尼已在食堂吃过晚饭。