How do students spend two days?

Twenty dollars is three days on average, less than seven dollars a day.

At present, it is really difficult to pay 20 yuan for three days at school. If you eat three meals a day, the simplest meal at school is not enough. Unless you can only eat some snacks, or steamed bread, steamed buns and the like. No matter how frugal you are, you should put health first, so that you can do other things well.