Yesterday, my wife and I went to the morning market to buy food. After buying vegetables, we were just about to go home when someone shouted, "Nano Cup, a high-tech product, can effectively prevent various common diseases such as hypertension and diabetes." I was very happy to hear that, and I was going to buy one for my father and one for my father-in-law, so we went forward.
Before coming to the booth, I picked up a cup and fiddled with it. When I felt in my pocket, I found that there was only ten dollars left. I looked at my wife and thought I'd better buy one for my father-in-law first. But looking at this high-tech product, I'm still worried about not having enough money. So, I asked guiltily, "How much is this nano cup?" The stall owner looked at me and said, "Big Brother, our nano cups are genuine, five dollars each and nine dollars each. More discounts. How many do you want? "