And they are destroying the air by discharges of pollutants into the air.See more at: http://loigiaihay.com/reading-unit-10-trang-114-tieng-anh-11-c78a19959.html # ixzz48AEqbmEE
And they are destroying the atmosphere by emissions of pollutants into the air. See more at: http://loigiaihay.com/reading-unit-10-trang-114-tieng-anh-11-c78a19959.html # ixzz48AEqbmEE