精选优质文档-倾情为你奉上英语翻译Book1Unit9 1) 工厂和汽车排出的一氧化碳一类气体严重污染了大气。Gases such as carbon monoxide, emitted by factories and automobiles, have seriously polluted the atmosphere.2) 那位工业管理工程师的来信表明，他对该项计划是否可行有怀疑。The industrial engineers letter indicates that he doubts the feasibility of the plan.3) 在美国，许多父母在孩子出生之前就为他们的教育留出一笔专款。Many parents in the United States set aside a fund for their childrens education before they are born.4) 我已了解清楚，她的结论是以事实为根据的。I have made sure that her con
