noun🔗Share汚染物質、汚染源A foreign substance that makes something dirty, or impure, especially waste from human activities."Car exhaust is a major pollutant in many cities, making the air unhealthy to breathe. "車の排気ガスは多くの都市で主要な汚染物質であり、呼吸する空気を不健康にしています。environmentsubstanceindustryChat with AIVocabulary GamePractice Reading
