What does foreign trade mean?

Foreign trade, as its name implies, is foreign trade. In fact, it is to sell domestic things to foreigners. \x0d\ There are two ways to do foreign trade: \x0d\ one is to be a witness and do auxiliary work \x0d\ the other is to be a salesman and do business work, mainly to keep in touch with foreigners by mail and telephone, and my English level is good.