smog是什么意思

双语用例

• To them, acid rain and urban smog are more immediate and urgent concerns than global warming.

• Other problems, resulting from the air emissions, include pernicious odor and smog.

• Methane found in the atmosphere is mostly consumed by photochemical smog.

• The intrusion of the machine into the garden has been followed by that of the syringe on the beaches, the smog in the valley, the sewage in the river.

• The effect that we call acid rain is a photochemical smog created by a combination of sulphur dioxide, nitrogen oxide, hydrocarbons and ozone.

• There, gridlock occurs now on an almost daily basis and the city swelters under an ever present cloak of photochemical smog.

• The most important component of summer smog is ground level ozone.

• I am not referring just to acid rain, smog and the efficiency of rubbish disposal, all of which we must take into account.