There were 15 minutes between the first air raid alert and the sounding of the all-clear signal.
从第一个空袭警报到警报解除号音其间有15分钟。
Troops in the Philippines have been put on full alert in anticipation of trouble during a planned general strike.
预期在计划的总罢工期间会有麻烦，在菲律宾的军队已处于完全戒备状态。
The key to staying alert and awake on the job is to keep your chi moving.
在工作中，保持警觉和清醒的关键是让你的“气”运动。
The second alert was sounded at 6:43 pm, and the blaze was discovered on the roof.
第二次警报在下午6点43分响起，大火是在屋顶上发现的。
"Sharp" meant genuinely discerning, alert, acute rather than quick-witted or clever.
“Sharp”的意思是真正具有辨识力、警觉、敏锐，而不是机敏或聪明。
When that is failed, they stop the hunters, banging on pots and pans to alert the deer.
当这一切都失败后，他们就会阻止猎人，敲打锅碗瓢盆来警告鹿。
At the same time, the app will send an alert to the contact who is keeping you company.
同时，应用程序会向你身边的联系人发送警报。
Install a CO detector to alert you of the presence of the deadly, odorless, colorless gas.
安装一氧化碳检测器来警告是否存在这种致命的、无色无味的气体。
We edited Figure 11 below, so you could see all the questions that are related to a spilled sort alert.
我们对下面的图11进行了编辑，这样您就可以看到与排序溢出警报有关的所有问题。
Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed.
一项研究表明，当你在一个陌生的地方睡觉时，你的半边大脑会保持警觉并做好准备防范危险。
The eye controlled by the sleeping hemisphere keeps shut, while the wakeful hemisphere's eye stays open and alert.
由睡眠大脑半球控制的眼睛保持关闭，而清醒大脑半球的眼睛保持睁开和警觉。
You have to be very alert when you are at your most vulnerable, especially when you are depressed or feeling isolated.
在你最容易受到伤害的时候，你必须非常警惕，尤其是当你感到孤独的时候。
Farmer is very concerned about the need to alert the public to poor security and, so far, events have proved him right.
法默非常担心需要提醒公众注意糟糕的安全状况，到目前为止，事实证明他是对的。
It caught us in the act, sent an alert to my smartphone, and also listed our RF interference on the system's event log.
它对我们逮了个正着，向我的智能手机发送了警报，还在系统里的事件日志中列出了我们的射频干扰。
Paris prosecutor Remy Heitz said that an initial fire alert was sounded at 6:20 pm on Monday evening but no fire was found.
巴黎检察官雷米·海茨表示，周一晚上6:20分，警方首次发出了火灾警报，但没有发现火情。
At the same time, workers were required to discard old habits, for industrialism demanded a worker who was alert, dependable, and self-disciplined.
与此同时，工厂还要求工人们摒弃原来的习惯，因为工业制度需要机敏、可靠和自律的工人。
If they detect something wrong while the system is armed, they'll transmit a wireless alert signal to a base station that will then raise the alarm.
如果他们在系统布防时发现了什么问题，就会向基站发送无线警报信号，然后基站会发出警报。
We must be alert to these signals and respond with the compassion and care that are hallmark traits of what it means to be a woman, anywhere, everywhere.
我们必须警惕这些信号，以同情和关爱来回应，这些信号是标志性特征，说明在任何地方、在所有地方做女人意味着什么。
Stay alert to serious symptoms, such as chest pain or pressure, severe shortness of breath or dizziness, or faintness, and seek medical attention immediately.
要对胸痛、胸闷、严重呼吸急促、头晕、晕厥等严重的症状保持警惕，并立即就医。
With the right device tuned to the right frequency, what's to stop a thief from jamming your setup and blocking that alert signal from ever reaching the base station?
通过将正确的设备调整到正确的频率，如何防止小偷干扰你的设备阻止警报信号到达基站呢？
Their risky behaviors—drinking too much alcohol, using illegal drugs, smoking cigarettes and skipping school—can alert parents and teachers that serious problems are brewing.
他们酗酒、吸毒、吸烟和逃学的危险行为可以提醒家长和老师，严重的问题正在发酵。
Birds that are literally half asleep—with one brain hemisphere alert and the other sleeping—control which side of the brain remains awake, according to a new study of sleeping ducks.
根据一项关于睡觉的鸭子的新研究来看，半睡半醒的鸟儿——大脑的一个半球处于警觉状态，另一个半球处于睡眠状态——控制着大脑的哪一边保持清醒。
The researchers explained that the study demonstrated when we are in a novel environment the brain partly remains alert so that humans can defend themselves against any potential danger.
研究人员解释说，这项研究表明当我们处于新环境，大脑会保持部分警觉，这样人类就能在各种潜在的危险中保护自己。
Our school held a lecture about AIDS last week to alert us the dangers of HIV.
上周我们学校举办了一场关于艾滋病的讲座，让我们意识到艾滋病毒的危害。
With the right amount of sleep you should wake up fresh and alert five minutes before the alarm rings.
有了适量的睡眠，你就应该在闹钟响前的五分钟精神抖擞地醒来。
As a new YouGov poll shows, Britons are surprisingly alert to class—both their own and that of others.
舆观调查网（YouGov）的一项最新民意调查显示，英国人对阶级的敏感程度令人惊讶——无论是对自己的还是别人的。
During the air pollution red alert, the Beijing Commission of Education ordered all kindergartens, primary schools and middle schools to suspend classes.
在空气污染红色预警期间，北京市教委下令让所有幼儿园、小学和中学停课。
"More sleep in old age, however, is associated with better health, and most older people would feel better and more alert if they slept for longer periods," he said.
他说：“然而，老年人睡眠时间越长，身体越健康。如果他们睡得时间更长一些，大多数老年人会感觉更好、更有精神。”
They are alert at bedtime and sleepy when it is time to get up, and this may have nothing to do with how fatigued their bodies are, or how much sleep they must take to lose their fatigue.
他们在睡觉的时候很清醒，到了该起床的时候很困倦，这可能与他们的身体有多疲劳，或者需要多少睡眠才能消除疲劳无关。
These approving contemporary critics were particularly alert to each writer's contribution to the depiction of American social life, especially to regional differences in manners and character types.
这些持肯定态度的当代批评家尤其注意到每个作家对美国社会生活描写的贡献，特别是风俗习惯和性格类型的地域差异。
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