為了讓更多的人喝到健康的飲用水，美國一家機構(gòu)發(fā)布了一個凈水網(wǎng)站
More than 1 billion people around the world do not have clean drinking water. Their water supplies are unsafe because of natural or man-made pollution, such as industrial chemicals or human and animal wastes. Water-related diseases, like cholera and guinea worm, kill millions of people…