may i change my order?
我能变更我所点的菜吗?
may i have tea instead of coffee?
我可以改要茶不要咖啡吗?
b：what will you have?
你要点什么?
a：just a moment, please. i haven't made up my mind yet.
请稍等，我还没决定。
b：may i take your order, sir?
你要点菜了吗?先生。
a：yes. let me see. may i have a bottle of white wine?
是的，我看看，我要一瓶白葡萄酒好吗?
two glasses of red, please.
两杯红酒。