主题句：I need a receipt. 我要一张收据
SCENE 1
Customer： Oh, what a beautiful vase！ How much did it cost？ 多漂亮的花瓶，卖多少钱？
Salesman： 1800 yuan. It's made of a new type of meterial, and it's the latest model. 1800元，它是用新型材料做成的，而且是最新的款式。
Customer： It's expensive, but I'll buy it. I also need a receipt. 挺贵的，但我要把它买下来，请给我一张收据。
SCENE 2
Customer： Excuse me, I want to buy a digital mobile phone. 劳驾我想买一部数码手机。
Salesman： Good, what kind do you want？ 好的，想要什么类型的？
Customer： The best, and I need a receipt. 最好的那种，我还要一张发票。
SENTENCES
1. I need a receipt for the lipstick, please. 我需要一张买口红的收据。
2. I need a receipt for the construction meaterial. 我需要一张买建筑材料的收据。
3. I need a receipt for the camera. 我需要这相机的收据。
