highest alert
美
英 
例句
South Korean and US forces in the region have been placed on the second-highest alert level.
在那一地区的韩国军队和美国军队都处于第二最高的警戒级别。
indeed, the highest alert. We did so almost immediately upon the attacks, and it is still in force.
我们在遭受袭击之后就立即这样做了,现在也处于此状态。
In fierce tones, TV anchors repeated warnings that country's forces were on the highest alert.
在激烈的论调下,电视主播们再三重复警告这个国家现在拉响了最高警报。
Han Jun 80 shells fired immediately returned fire, and raised to the highest alert level.
韩军随即发射80余枚炮弹还击,并将警戒级别提升至最高。
The administration issued its highest alert yet this year due to the storm, which was packing winds of 102 mph (162 kph).
政府发布了最高的警报,今年暴风的风速将达到102英里。
US and South Korean troops are all on the highest alert in three years because of North Korea.
受朝鲜影响,美国和韩国军队在未来的三年内将处于高度戒备状态。
Be on the highest alert.
保持高度警惕。