Technology is very helpful for people's life. Living in a smart city can be convenient, but there're also problems that make people annoying. First, factories make a lot of cacbon dioxide, so the air is not very fresh. Second thing is high price of space to live, food and something else like clothes or houseware. Third, traffic congestion because here the streets are narrow and an adult statue lives, so the problem of traffic congestion often occurs. Cities can be fun and convenient, but they're not really comfortable and as good as countryside.