名詞 air pollution:

1. pollution of the atmosphere

1. No area in the world is completely free of air pollution. We must take measures to control it.
   世界沒有不遭空氣污染的地方，我們必須采取措施加以控制。
2. Exhaust gas has been incriminated in air pollution in cities.
   廢氣已過視為城市空氣污染的原因。
3. We should use anthracite to avoid air pollution.
   我們應該使用無煙煤以防止空氣污染。