pollution is a serious problem in big cities throughout the

pollution is a serious problem in big cities throughout the 根据首字母填空：Pollution is a serious problem in major cities t___ Air pollution is now a serious problem in China 英译汉 Air pollution is___most serious problem in many major cities the teacher told us that pollution (is) a serious problem in 连词成句1.now,in,pollution,a,the,is,world,problem,serious(.)2.wo 高手帮忙翻译一下City traffic is a big problem in some cities in the 英语翻译POLLUTION IS ONE MOST SERIOUS ______(PROBLEM) IN THE WOR （）pollution is a serious problem to the human race.A.how to 英语阅读理解Rush hour traffic is a problem in many big cities arou in big cities,air p______is quite serious. It_____ in the newspaper that pollution is still a serious p