Is immigration the content of foreign trade?

Immigration is not the content of foreign trade. Immigrants refer to people who move to a certain area abroad for permanent residence. Foreign trade refers to the exchange of goods, services and technologies between one country (region) and another. This trade includes two parts: import and export. For countries (regions) that import goods or services, it is import. For countries (regions) that transport goods or services, it is export. This began to appear and develop in slave society and feudal society, and it developed more rapidly in capitalist society. Its nature and function are determined by different social systems.