noun🔗Share污染物，污染源 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. "汽车尾气是许多城市的主要污染物，使空气变得不健康，不适合呼吸。environmentsubstanceindustryChat with AIVocabulary GamePractice Reading
