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来源:雅诚德英语网
Bad air quality can contribute to many health problems such as asthma, and improperly discarded garbage can spread bacteria that are dangerous to health.
糟糕的空气质量会导致许多健康问题,比如哮喘,而丢弃不当的垃圾会传播细菌,危害健康。
Bad air quality can contribute to many health problems such as asthma, and improperly discarded garbage can spread bacteria that are dangerous to health.
糟糕的空气质量会导致许多健康问题,比如哮喘,而丢弃不当的垃圾会传播细菌,危害健康。