国内贸易和国际贸易的一个主要区别就是单据。每一批货物都伴随着很多单据。如果单据不正确，进口商在提货时就会遇到麻烦，并且不正确的单据造成的延误可能会影响到贸易伙伴之间未来的商业关系。
One of the major differences between domestic trade and foreign trade is documentation. Every shipment must be accompanied by a number of correct documents. If they are not the correct ones ,he importer will have difficulties in taking delivery of the goods，and delays caused by incorrect documentation may affect future business relations between the trading partners.
