... air pollution alert空污预警 Air Alert Alarm 空袭警报 air alert mission 对空警戒任务 ...
2
?空气污染警报
... air defense alert 防空警戒 air pollution alert空气污染警报 air raid alert 空袭警报 ...
双语例句
1
During the airpollution 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。
2
The announcement came last night as Beijing has extended its orange alert forheavy airpollution 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。
3
It also initiated its first-ever airpollution red alert mechanism.