He is a man alert in problem.
他是
留意问题的人。
警报，红色警报；
况He is a man alert in problem.
他是留意问题的人。
The policeman alerted me to the danger.
警察警告我有
险。
The voice of the caller alerted her.
呼唤者的声音使她警觉起来。
A sparrow is very alert in its movements.
麻雀行动非常机灵。
The whole navy was placed on full alert.
军都处于全面戒备态。
Drivers must be on the alert for traffic signals.
驾驶员必须密切注意交通信号。
One should not run about aimlessly during an alert.
空袭警报期间不可到处乱跑。
A nationwide alert went out for three escaped prisoners.
全国范围内发布了警报，搜捕三名监狱逃犯。
The radio alert ed the citizens to prepare for the hurricane.
电台警告市民们作好预防暴风准备。
With Tirol before it, the motley battlewagon went on combat alert.
在泰洛行星周围，各种战舰处于战斗警戒态。
In our reading we should always be alert for idiomatic expressions.
我们在阅读过程中经常注意惯用法。
The Shetland Sheepdog is a small, alert, rough-coated, longhaired working dog.
喜乐蒂牧羊犬是一种小型的、警惕的、粗毛型的长毛工作犬。
Alert readers may have noticed the misprint in last week’s column.
细心的读者可能已经注意到上周专栏中的印刷错误了。
The patrol police on duty are on the alert against any possible disturbances.
"值班巡警处于戒备态,随时准备付任何可能发生的骚乱。"
He has an alert mind.
他很机灵。
He is an alert boy.
他是一机警的孩子。
He is invariably alert, usually enthusiastic, and always willing to tackle a new problem, usually with verve and irrepressibility.
他不变化地警觉,通常狂热的,和总是乐意的处理一新的问题,通常用气魄和镇压不住。
A new design of intelligent fire alert detecting system on multi detector signal fuzzification technic is presented in this paper.
提出一种基于模糊-神经网络的多探测器信息模糊化智能型火灾报警监测系统的新方案。
He was the same thin, pleasant, alert, rather agreeable soul that he had been in the heyday of his clerkly prosperity.
他还是和做职员正得意的全盛时期一样，是一瘦削、高兴、灵活、和蔼可亲的家伙。
Iraqi security forces were placed on high alert and American aircraft —unpiloted reconnaissance drones flying low, and fighter jets roaring high above —crossed the capital.
伊拉克安全部队处于高警戒态，美国空军在首都上空穿梭，无人驾驶侦察机低空飞行，战斗喷气机高空呼啸。
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