water saving in household
water saving in household
家庭节水
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The paper discussed the source and hazards of wastewater in household, then introduced the water saving experience in developed countries.
讨论了家庭污水的来源与危害，介绍了发达国家的节水经验。
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