on the alert中文是什么意思

alert adj. 1.警惕的，警觉的。 2.机警的，机灵的。 n ...
alert adj. 1.警惕的，警觉的。 2.机警的，机灵的。 n. 1.警戒；警报。 2. 警戒期间。 3.【军事】紧急待命。 No. one alert 一级战备。 On the alert 警惕，提防。 vt. 使警戒。 The troops were alerted. 部队在待命中。 adv. -ly ,-ness n.
alert for 优先号码组
be alert to 对…警觉; 对…警惕; 警觉
be on the alert 保持警惕; 处于戒备状态
alert alert alert警告
active alert 战斗警报
advance alert 提前进行的战斗准备
air alert 1.空袭警报(期间)。 2.【军事】空中待机。
airborne alert 空中待战; 空中警戒
airdrome alert 机场待战
airfield alert 机场值班
alert aircrew 值班空勤组
alert always 随时报警
alert appearance 外观灵活
alert apron 待机坪
alert area 警戒区
alert bay 阿莱特湾; 阿勒特贝
alert box 报警信息框
alert boxes 警报框
alert by radar 雷达警戒
alert call 空袭警报信号
alert capability 按警报起飞能力; 报警能力
alert color 警戒色
alert commitment 战斗起飞任务

千万人都在用的超大词汇词典翻译APP

Hearing this , i was instantly on the alert .
我一听这话，当下就警惕起来。
They must be constantly on the alert for the enemy .
他们必须随时注意敌人。
Old jolyon was on the alert at once .
老乔里恩立刻警觉起来。
Her fears had always been on the alert for an upheaval .
她日夜提心吊胆，严防突变。
The sentries were all on the alert .
哨兵们都警戒着。
Knowing that danger threatened, the sentry was on the alert .
因为知道危险势将发生，这哨兵加意戒备。
They were constantly on the alert not to be taken by surprise .
他们一直处于常备不懈状态以防突然袭击。
The armies were constantly on the alert not to be taken by surprise .
部队一直处于警戒状态以防突然袭击。
That was why he looked at the young man with a speculative frowning look, not condemning him, only wary and on the alert .
他所以要蹙着眉头，带着探索的神情望着这个年青人，对他存着戒心，而不斥责他，也就是这个道理。
Troops are on the alert against any possible aggression
军队戒备着可能的来犯。