For example, some restaurants are self-service. But in order to make a profit, he only helped himself in the five hours from 14 to 19. . Eat at the restaurant at 20: 00, and you can only order food. . Because it's past self-help time. In other words, I'll give you a menu and you can order. It's better to eat it than to do it yourself. Can you understand? (General buffet says zero, ordinary restaurant says a la carte)

And a set meal. Such as a crab 12. 40 yuan is the only 4 in the set meal. He will instruct Dan 12. Per package 10 yuan. It also means this single point.

But it's usually the first one. Before or after the merchant's preferential time, the order is single point and zero.

Give another most common example. Pizza Hut afternoon tea, you order a cup of coffee+official,/kloc-free refill before 0/7 o'clock. A * * * is only 30. /kloc-After 0/7 o'clock, you want more coffee, even if it is a single order, it looks like a cup 18. Click on the department grid again, and there will be 24 sections. If you want to eat these two things again, you need to separate them. A pair of 42. . The price is different, just hope you know what it means. . Alas. . I don't know if I explained it clearly. .