All the St. Louis hospitals are on red alert.
所有的圣路易斯医院都拉响了紧急警报。
Following the bomb blast, local hospitals have been put on red alert.
炸弹爆炸之后，当地医院一直处于戒备状态。
The yellow and red line on the chart above represents the alert thresholds.
图中，黄色和红色的线条表示警戒阈值。
Green is the color of safety. Red, on the other hand, most often means danger, alert, halt, please don’t touch.
绿色代表安全，而红色大多数情况下表示危险、警告、停止、禁止触碰。
Local weather forecasters issued the first red rainstorm alert of the year - the highest on the 3-level warning system.
上海中心气象台发布了今年以来首次最高级别的暴雨红色预警信号。
More details can be found on the Red Alert 3 website.
更多详细资料可发现，在这个红色警报3网站。
In Hainan's capital Haikou, local meteorological authorities issued a red alert at 8 a. m. on Thursday. Strong rain has caused city flooding, with most public transport suspended.
在海南省会海口，当地气象部门在周四早上8点发布了红色预警。强降雨导致海口市被洪水淹没，大多数公共交通都被暂时停运了。
During the recent red alert, pollution peaked at 508 on Tuesday, according to the US Embassy's air pollution monitoring service in Beijing.
据美国驻北京大使馆的空气污染监测服务中心数据显示，北京红色预警期间，污染在星期二达到峰值508微克。
旋转的红色警告光。
When a red-alert for air pollution goes into effect, the emergency plan will only allow drivers to use their vehicles every other day on an odd-even license plate system.
概要：《北京市空气重污染应急预案》今天正式发布，市环保局新闻发言人方力表示，空气污染达一级红色预警时，机动车将实行单双号限行。
When a red-alert for air pollution goes into effect, the emergency plan will only allow drivers to use their vehicles every other day on an odd-even license plate system.
概要：《北京市空气重污染应急预案》今天正式发布，市环保局新闻发言人方力表示，空气污染达一级红色预警时，机动车将实行单双号限行。
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