(1) 正餐(main meal of the day， eaten at noon or in the evening) [C， U]： have/(AmE) eat a big (nice)～大吃(美餐)一顿;cook a good～做一顿美餐; I love a～of chicken and vegetables. 我喜欢正餐吃鸡肉和蔬菜。They serve excellent～s here. 这里供应的饭菜不错。four～s at ￡2 a head (per person) 四份饭，每位(人)两英镑;cook/have/(AmE)eat/be at～做/吃/吃/正在吃饭;eat very little/much～正餐吃得很少/多;Have you had/(AmE) Did you eat～yet? 你吃饭了吗? D～'s ready! 饭好了!It's～time(time for～). 该吃饭了。have fish/roast meat for (one's)～正餐吃鱼/烤肉;What's for～? 正餐吃什么? ask sb to～请某人吃饭;

(2) 1) 宴会(large formal social gathering in the evening at which a meal is served) [C]：give/hold a～for (in honour of) the ambassador 为大使举行/举行一次宴会; attend a～出席宴会;He was the guest of honour at the～. 他是宴会的贵客。I shall wear my long dress to the～. 我将穿长裙去参加宴会。2) 私人餐会(private social gathering in the evening at which a meal is eaten) [C]：give a～for a friend 设宴招待朋友;

【说明】社会阶层或地区不同，lunch、dinner、supper、tea几个词的用法有不同。如果dinner 中午吃，则晚饭叫tea，临睡前吃supper(少量的点心);如果晚上吃dinner，则午饭叫lunch，下午用tea(饮料和蛋糕或饼干)。