标签：话题作文 话题 大学英语作文
字数：1200字
提要：Environmental Pollutionthe problem of pollution, cause, artificial substances, release, waste products, industrial production, consumption of goods, bring it under control, agriculture, chemicalsubstancea.Environmental PollutionI read a piece of news recently. It says that in Japan marly businessmen ave selling fresh air to customers.and now it is becoming more and more popular. Why? --Fresh air i..