n.贸易（trade的名词复数 ）；行业；顾客；买卖v.交易，经商（ trade的第三人称单数 ）；交换；经营…交易，做…的买卖； 英英释义： trade[ 'treidz ]n.the commercial exchange (buying and selling on domestic or international markets) of goods and services"Venice was an important center of trade with the East"; "they