• 外来因素

foreign ion杂质离子foreignadj.外来的；外国的；异质的；不相符的Foreign Trade Negotiation in English外贸英语谈判foreign exchange exposure management外汇风险暴露管理foreign-related unfair competition涉外不正当竞争foreign language teaching for adults成人外语教学Foreign language documentary service外文信息服务foreign fisheries research institute国外渔业研究机构Foreign flat-screen TV prices drop洋平板电视降价foreign language/earners' beliefs子包蚴foreign language learning motivation外语学习动机FOREIGN OFFICE MINISTER VISITS CHINA英国外交部大臣访问中国