"污染" 的英文是 "pollution"。"pollution" 是一个名词，来自拉丁语 "polluere"，意为"污染"或"弄脏"。
例句：
Industrial pollution is a major problem in many cities. (工业污染是许多城市的一大问题。)
Air pollution is causing health problems for many people. (空气污染导致许多人的健康问题。)
Water pollution from agricultural runoff is damaging local ecosystems. (农业径流导致的水污染正在破坏当地的生态系统。)