they are having meal/a meal/meals?

they are having meal/a meal/meals? they were enjoying their meal/meals?为什么不是meals?meal不是可数的吗? meal meals 的区别 I having a big meal I 'm having a big meal 哪个句子对? meal you are having a meal with your friend.you want to ask him t they eat two()(meal)a day 英语翻译翻译几个句子They had a meal at a restaurant.They ate a meal at Have you father _____smoking after having a meal? what a nice meal! thank you for having us 是for meal还是for meals? cook a meal cook the meal