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每个人的体重中都有一千克重量是来自细菌。大部分细菌可以和人相伴一生并相安无事、相互依存,而太频繁消毒反而会引起很多疾病。那么这些寄生客是如何影响人的健康的呢?
Every kilogram of body weight comes from bacteria. Most bacteria can live with others and live in peace, interdependence, and too often disinfect but will cause a lot of diseases. So how do these parasitic passengers affect human health?