B开头的英文单词答:commerce, trade, trading 贸易 inland trade, home trade, domestic trade, internal trade, interior trade 国内贸易 international trade 国际贸易 foreign trade, external trade 对外贸易,外贸 terms of trade 贸易条件 free-trade area 自由贸易区 import, importation 进口 importer 进口商 export, ...