Pollution is a w______ problem.

Pollution is a w______ problem. pollution is a serious problem in big cities throughout the Air pollution is now a serious problem in China 英译汉 Pollution isn't a big problem now,is it?( ) Pollution isn't （）pollution is a serious problem to the human race.A.how to 根据首字母填空：Pollution is a serious problem in major cities t___ air pollution is a problem in the city cfnter.怎么翻译 the teacher told us that pollution (is) a serious problem in Pollution is a great problem which man faces today这句话对吗 pollution isn't a big problem now,is it 怎么翻译 I say that pollution in this area is no longer a problem?-We 连词成句1.now,in,pollution,a,the,is,world,problem,serious(.)2.wo