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估计到2020年,世界人均淡水供应量至少比目前减少1/3以上。每隔15秒,就有一名儿童因与水相关的疾病而丧生。
It is estimated that by 2020 the world’s per capita supply of freshwater will be at least a third less than the current level. Every 15 seconds, one child dies as a result of water-related illnesses.