Explains the causes of problem with poor IAQ in living room (apart from kitchen and lavatory), analyses its effect on human health, and gives some ways to improve it.
说明产生室内空气品质问题的原因，分析居室内空气对人体健康的影响，并提出改善居室内空气品质的途径。
There is increasing concern about urban soil because of its effect on urban eco-environment quality and human health.
城市土壤影响到城市生态环境质量和人体健康，正日益受到关注。
Propolis is marketed by health food stores as a traditional medicine, and for its claimed beneficial effect on human health.
蜂胶作为一种传统医药，因其被认为对人体健康有益而通过保健食品商店面向市场销售。
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