有害物質(zhì)的用法和樣例：
例句
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污染造成污染的行為或過(guò)程或被污染的狀態(tài)，尤指因為排放有害物質(zhì)而造成的對土壤、水或大氣的污染
The act or process of polluting or the state of being polluted, especially the contamination of soil, water, or the atmosphere by the discharge of harmful substances.
