Even if you only cared about AIDS in Africa, it might still be a good idea to invest in malaria, in combating poor indoor air quality, in improving maternal mortality rates.
就算你只关心在非洲的艾滋病情况 投资治理疟疾也是一种不错的想法 可以改进室内欠佳的空气质量 降低孕产妇死亡率