Air pollution is now a serious problem in China 英译汉

Air pollution is now a serious problem in China 英译汉 连词成句1.now,in,pollution,a,the,is,world,problem,serious(.)2.wo pollution is a serious problem in big cities throughout the Air pollution is___most serious problem in many major cities 1.Air p_____is a serious problem in the world now.2.People w 根据首字母填空：Pollution is a serious problem in major cities t___ the teacher told us that pollution (is) a serious problem in What is the most serious pollution in China? air pollution is a problem in the city cfnter.怎么翻译 英语翻译1.As a result,air pollution has become a serious problem why air pollution is the most serious? Now the air pollution in this city ( ) more and more serious