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据专家介绍,我们的身体,将近75%是由水构成的。但是,人到老年,水分会下降至体重的60%以下,机体缺水,引起很多化学改
According to experts, nearly 75% of our body is made of water. However, when it comes to old age, water drops to less than 60% of body weight and the body is dehydrated, causing many chemical changes