For small and medium-sized enterprises, Amazon's B2C platform is the first choice, followed by WEBAliExpress and Wal-Mart, and Etsy. For powerful multinational enterprises or multinational e-commerce enterprises, AliExpress, Yi Bei, Amazon and other platforms can be selected as the main sales platforms. For SMEs, Wish, LinixGroup, AmazonExpress, Wal-Mart and other platforms can be selected as the main sales platforms, and Google, Amazon, AliExpress, AmazonExpress and Bing can also be selected as the main promotion platforms.