Current account refers to the flow of physical assets between a country and other countries, which is closely related to the national income account of the country and is also the most basic and important part of the balance of payments. Including goods, services, income and current transfers. Current account foreign exchange income specifically includes foreign exchange income from export or transit of goods and other transactions; Foreign exchange of domestic duty-free goods under customs supervision. Current account foreign exchange expenditure specifically includes trade import payment; Mantissa under import, etc.