a polluted environment英语作文
environmentalpollutionisaserioussocialproblem.itposesaterriblethreattomen’shealth.theatmosphereisfilthy.theairisthickwithdustandbuoil.darksmokesarebeingemittedfromchimneys,andchokingfumesarebeingrele...
environmentalpollutionisaserioussocialproblem.itposesaterriblethreattomen’shealth.theatmosphereisfilthy.theairisthickwithdustandbuoil.darksmokesarebeingemittedfromchimneys,andchokingfumesarebeingrele...