"北京是世界上大气污染最严重的十大城市之一"用英文怎么说?
最好多用简单一点\容易理解的单词
参考答案:Beijing is one of the ten most severely polluted cities in the world.
The coal used up in Beijing has been up to 27,000 thousand tons.
2700吨:twenty seven hundred tons
2700万吨:twenty seven million tons