動詞 pollute:

1. make impure
   同義詞：pollute, foul, contaminate

形容詞 polluted:

1. rendered unwholesome by contaminants and pollution
   同義詞：contaminated

1. It is true that Japan is a beautiful country, but its big cities are lately polluted.
   日本的確是個美麗的國家，但最近日本的大都市已被污染。
2. The river has been polluted by waste products from the factory.
   這條河已經受到工廠排放的廢料的污染。
3. The tanker sank and the oil polluted the sea.
   油輪沉沒了，石油污染了海面。
4. Polluted air hangs over the city.
   城市上空被污染的空氣所籠罩。