中国严重雾霾波及近5亿人
<p><span word="The">The</span> <span word="government">government</span> <span word="has">has</span> <span word="shut">shut</span> <span word="schools">schools</span>, <span word="restricted">restricted</span> <span word="road">road</span> <span word="traffic">traffic</span> <span word="and">and</span> <span word="urged">urged</span> <span word="people">people</span> <span word="to">to</span> <span word="stay">stay</span> <span word="indoors">indoors</span> <span word="as">as</span> 24 <span word="cities">cities</span> <span word="across">across</span> <span word="northeast">northeast</span> <span word="China">China</span> <span word="were">were</span> <span word="put">put</span> <span word="on">on</span> “<span word="red">red</span> <span word="alert">alert</span>” <span word="for">for</span> <span word="extreme">extreme</span> <span word="smog">smog</span> <span word="on">on</span> <span word="Tuesday">Tuesday</span>.</p><p>政府关闭了学校，限制了道路交通，并敦促人们留在室内。周二，华北24个城市发布了极端雾霾“红色警报”。</p><p><span word="China">China</span>'<span word="s">s</span> <span word="most">most</span> <span word="severe">severe</span> <span word="bout">bout</span> <span word="of">of</span> <span word="air">air</span> <span word="pollution">pollution</span> <span word="this">this</span> <span word="year">year</span> <span word="has">has</span> <span word="hit">hit</span> 460<span word="m">m</span> <span word="people">people</span>, <span word="who">who</span> <span word="are">are</span> <span word="exposed">exposed</span> <span word="to">to</span> <span word="smog">smog</span> <span word="levels">levels</span> <span word="six">six</span> <span word="times">times</span> <span word="higher">higher</span> <span word="than">than</span> <span word="the">the</span> <span word="World">World</span> <span word="Health">Health</span> <span word="Organisation">Organisation</span>’<span word="s">s</span> <span word="daily">daily</span> <span word="guidelines">guidelines</span>, <span word="according">according</span> <span word="to">to</span> <span word="calculations">calculations</span> <span word="by">by</span> <span word="Greenpeace">Greenpeace</span>. <span word="The">The</span> <span word="smog">smog</span> <span word="has">has</span> <span word="lasted">lasted</span> <span word="over">over</span> <span word="three">three</span> <span word="days">days</span> <span word="in">in</span> <span word="many">many</span> <span word="areas">areas</span>.</p><p>根据绿色和平组织(<span word="Greenpeace">Greenpeace</span>)的计算，中国今年最严重的大气污染已影响了4.6亿人，污染程度是世界卫生组织(<span word="WHO">WHO</span>)日常指标的六倍。在许多地区，雾霾天气已持续了三天。</p>
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