七天不进水，人就会虚弱。

Seven days without water makes one weak.

youdao

常识有如人体血液一样贵重。人缺了血液，身体就会虚弱；人贫乏常识，脑筋就要枯竭。——高士其。

Common sense is as precious as human blood. Lack of blood, the body will be weak; People lack common sense, brains will be dried up. - Gao Shiji.

youdao

人一旦没有适当的营养和干净的饮水，很快就会虚弱无力，容易罹患腹泻、脑膜炎、疟疾、黄热病等疾病。

Without adequate nutrition and clean water, a person quickly weakens and falls prey to sicknesses like diarrhea, meningitis, malaria and yellow fever.

youdao