经营同旅游有关的委托代办业务: to handle commission business relating to tourism
对外贸易: foreign trade; external trade◇对外贸易乘数 foreign trade multiplier; 对外贸易单位价值指数 foreign trade unit value index; 对外贸易额 value of foreign trade; 对外贸易额指数 idex number of the amount of foreign trade;