乘无人售票车时,发觉没带零钱,只有一张10元的纸币,投下后,只能无奈地坐在第一排等待着有人找零钱给我,但许多人都是刷交通卡或也和我一样———需要找零钱,结果等到下车还没有找到钱。有没有一种机器可以方便那些没带零钱的人呢?如地铁里的换币机器,但它的体积太庞大,成本也很 When I took the unmanned ticket, I noticed that I did not bring any change. I only got one 10 yuan banknote. After I dropped it, I could only sit in the first row waiting for someone to give me a change, but many people were brushing traffic cards or Like me - need to find change, the result until the get off has not found money. Is there a machine that can be used for those who do not carry any change? Such as the coin machine in the subway, but its size is too large, the cost is also very