空闲时,你最喜欢做什么呢?我最喜欢和妈妈到商场去购物,因为我天生是一个“美食家”。说起购物,那真是太爽了,可一提到结账付款,就让人头疼。收银员需要一件物品一件物品地扫描价格,然后才收款,再给顾客找零,速度太慢。要是赶上节假日,超市里人山人海,排队都得排半天,简直不敢想象。因此我要发明一种“购物筐收银机”。“购 When I was free, what did you like to do most? My favorite shopping trip to the mall was because I was born a ”gourmet“. Speaking of shopping, it is really cool, can be mentioned at the checkout payment, it is a headache. Cashier needs an item to scan the price of an item, and then collect money, give the customer to find zero, too slow. If you catch up with holidays, the crowds of people in the supermarket, have to wait in line for a long time, simply can not imagine. So I want to invent a ”shopping basket cash register “. ”purchase