During the air pollution red alert, the Beijing Commission of Education ordered all kindergartens, primary schools and middle schools to suspend classes.
在空气污染红色预警期间，北京市教委下令让所有幼儿园、小学和中学停课。
The announcement came last night as Beijing has extended its orange alert forheavy air pollution again as smog is expected to persist until the weekend.
这个宣布来自昨晚，北京再次发布空气重污染橙色警报，预计雾霾将持续到周末。
It also initiated its first-ever air pollution red alert mechanism.
它还启动了首个空气污染红色预警机制。
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