地球上超过97%的水是海水，在盐分去除之前是不能饮用的。
More than 97 percent of Earth's water is in the oceans, but that vast reservoir is undrinkable unless the salt is removed.
化工企业为了节省成本，不会入河污水处理，使水不能饮用的。
Chemical companies in order to save costs, will not be processed into the river sewage, and makes the water undrinkable.
由于世界上97%的水含盐量过高，不能饮用或用于农业，全世界的水供应需要谨慎管理，特别是在农业方面。
With 97% of the world's water too salty to be drunk or used in agriculture, the worldwide supply of water needs careful management, especially in agriculture.
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