supper是可数名词吗

supper是不可数名词。
例句：
At supper, everyone was in high spirits、
晚饭时每个人都情绪高昂。
Ill just go and freshen up before supper、
晚饭前我要去梳洗打扮一番。

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。