trade in以旧换新； 买卖traden.贸易；交易；行业；同行；顾客；营业额；交易量v.做生意；从事贸易；购物；营业；(在证券交易所)交易；交换trade difficulty贸易问题Trade Efficiency交易效率trade competitor贸易竞争国trade population行业人口trade deflection贸易转销trade procurator[经] 贸易(商务)代理人trade typesetter商业植字公司trade collection贸易收支trade mark owner商标所有者trade acceptancen.商业承兑汇票

1. I refuse to trade with that store ever again, they keep cheating us on the bill!
   我再也不上那家店里买东西了，他们老是在我们的账单上做手脚。
2. Since joining the Common Market, Britain's trade with Europe has greatly increased.
   英国自从加入共同市场以来，与欧洲的贸易大增。
3. China does a lot of trade with many countries.
   中国和许多国家进行多方面贸易。
4. The fair is a big gathering. Thousands of businessmen from more than150 countries and regions are here to trade with China.
   本次交易会是一次盛会。来自150多个国家和地区的成千上万的商人在这里与中国进行贸易。