have a dinner吃一顿晚餐；
have dinner吃晚餐。
大部分都会说成是have dinner,很少会用到have a dinner。
When do you have dinner?
你什么时间吃主餐？
How would you like to have dinner one night?
哪天晚上和我一起吃饭好吗？
I think I\'ll have a shower before dinner
我想晚餐前洗个淋浴。
I\'ll just have a quick wash before dinner.
我只是很快地洗一洗就吃饭。
