alertness
One should not run about aimlessly during an alert.
空袭警报期间不可到处乱跑。
She is always on the alert for some new calamity.
她总是保持警觉以防某种新的灾难。
Keep on the alert; we're due for an inspection.
提防着点，轮到检查我们了。
Be sure to be watchful or alert.
必须留神，千万要提防。
The district was put on red alert during a terrorist bomb scare.
这个地区在得到恐怖主义者轰炸后作了应急准备。
The alert leopard went up to a deer quietly.
警觉的豹子静悄悄地走近一只鹿。
An alert listener will have noticed the error.
耳朵尖的人能听出这个错。
Troops are on the alert against any possible aggression.
军队戒备着可能的来犯。
Articles in Time's Medical Section often alert readers to unsuspected ailments.
《时代》周刊医药栏目里的文章常告诫读者对自己意想不到的疾病保持警惕。
Although he's over eighty his mind is still remarkably alert.
他虽已年过八十，但头脑仍然十分机敏。
Emily is a Londoner born and bred and, for a woman some years past the allotted span, of a truly remarkable vigour and alertness.
埃米莉生在伦敦长在伦敦，虽已年逾古稀，但实在令人惊讶的是，她仍精力充沛，耳聪目明。
Alert to circumstances; attentive.
对周围环境敏感的; 留心的
They have put the army on the alert.
他们已使军队进入戒备状态。
The boy was alert in answering the stranger's questions.
男孩很机敏地回答了陌生人的问题。
He reacts to his surroundings with great alertness.
对周围环境具有高度的灵敏性。
Lacking responsiveness or alertness;insensitive.
迟钝的反应不迅速的；不敏感的
I know him well in that mood of alertness and suspicion.
我对他这种警觉和猜疑的情绪是很熟悉的。
Lacking responsiveness or alertness; insensitive.
迟钝的反应不迅速的；不敏感的
I drifted in and out of alertness.
我时而清醒时而昏迷。
Without Alertness I'll be stupid.
没有机敏那是愚蠢。
DMAE is also credited with increased alertness.
DMAE同时具有使人更清醒的功效。
Fear brings about a heightened state of alertness.
恐惧使得人们提高了警惕程度。
They also increase alertness and energy.
它们也能提高机敏性和精力。
The other half of the brain stays awake at a low level of alertness.
另一半大脑在低水平警戒状态下保持清醒。
Ginseng was reported to have increased energy and mental alertness.
人参可以增进体力和提高精神敏捷性。
The cat is alert to every sound and movement.
那只猫对任何响动都很警觉。
Suddenly the combat alert sounded.
突然战斗警报响了。
Our forces are normally in various states of alert.
我们的部队通常处于不同的战备状态。
He drinks a lot of tea to maintain his mental alertness.
他喝很多茶保持神智清楚。
The sentry was praised for his alertness in his post.
哨兵因他站岗时的机警而被称赞。
In a lotus posture you can keep alertness to the very end.
以莲花坐的姿势你就能保持警觉直至最尽头。
I must alert him to the need to solve the problem.
我必须使他认识到解决这问题的必要性。
Alertness to or concern for a particular issue or situation.
警觉对特殊问题或状态的警觉或关心。
The general impression is that of power, agility and alertness.
给人的一般印象是力量、敏捷和机警。
The order urged the armed forces to enhance their alertness.
该项命令敦促武装部队提高警惕。
A sparrow is very alert in its movement.
麻雀的动作很敏捷。
Be alert! There's a man spying on us not far away.
当心，有人在不远处窥视我们。
The city must be on the alert for being polluted.
城市要防止污染。
Dogs are always on the alert wherever they go.
无论在什么地方，狗总是处于警觉状态。
We must be constantly alert to this danger.
对此，我们必须保持高度的警惕。
We should stand by on a hurricane alert.
在暴风雨警戒期间我们应加戒备。
A lot of people will be alert and waiting.
许多人都将提高警惕等待着。
Her work is extraordinary rich and alert.
她的作品特别华丽而灵活。
We will alert operating personnel to repair.
我们将要通报操作人员去维修。
Assign supervisor and enclose alert area.
设立监护人和警戒区域。
Be alert to shame lurking within you.
要时刻警觉羞愧就潜伏在你的内心。
You must be alert to the hidden danger.
你必须对隐藏的危险保持警觉。
We should be alert to cultural imperialism.
我们应当警惕文化扩张。
A hotel alert rated everything in the book.
饭店报警按规定是重于一切的。
We should stand by on a hurricane alert .
在暴风雨警戒期间我们应加戒备。