noun🔗Share排水, 汚水Any water that has been used in some human domestic or industrial activity and, because of that, now contains waste products."The factory treats its wastewater before releasing it into the river to protect the environment. "工場は環境保護のため、排水を川に放出する前に処理します。environmentutilityindustryscienceChat with AIVocabulary GamePractice Reading
