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 is getting less and less in Japan, and so is it in the U. S. A.In fact, environmental pollution is a very serious problem the whole ...
自18世纪60年代产业革命开始以来，人类大量使用煤和石油等燃料，而使大气中的二氧化碳的浓度急剧上升。温室效应造成全球变暖的趋势，加剧了世界各地的自然灾害。 Since the industry revolution in 1760s, People started to use coal and oil vastly. That makes the ...
