求翻译：在地球上，哪里有水，哪里就有生命。一切生命活动都是起源于水的。人体内的水分，大约占到体重的65%。其中，脑髓含水75%，血液含水83%，肌肉含水76%，连坚硬的骨胳里也含水22%哩！没有水，食物中的养料不能被吸收，废物不能排出体外，药物不能到达起作用的部位。人体一旦缺水，后果是很严重的。缺水1%-2%，感到渴；缺水5%，口干舌燥，皮肤起皱，意识不清，甚至幻视；缺水15%，往往甚于饥饿。没有食物，人可以活较长时间（有人估计为两个月），如果连水也没有，顶多能活一周左右。是什么意思？

On Earth, where there is water, where there is life. Origin of all life activities is in water. Body of water, approximately to the weight of 65%. Among them, water content of brain 75%, blood water 83%, muscle-containing 76%, even the hardest in the skeletal is water 22% miles! Without water, food and nutrients can't be absorbed in, cannot be eliminated from the body of waste, drugs cannot get to the work site. Once the human body is water, the consequences are very serious. 1% per cent of water shortage, felt thirsty; water 5%, thirsty, skin wrinkling, consciousness is not clear, even OP; 15% of water shortage, often better than hunger. Without food, people can live for a long time (it was estimated to be about two months), if it does not even water, at most can live a week or so.