一名警方发言人表示，这是一周内的第三次炸弹恐吓，我们都应该保持警惕。
A police spokesman said that this was the third bomb scare within a week and that we should all be on our guard.
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。
Stay alert to serious symptoms, such as chest pain or pressure, severe shortness of breath or dizziness, or faintness, and seek medical attention immediately.
除非我们保持警惕，否则当机会在手中时，我们很容易意识不到它，也很容易让它流失。
Unless we are vigilant, it's easy to fail to realize an opportunity when it is in hand and it's just as easy to throw it away.
如果人们意识到其他的动机有可能会损害他们信念的准确性，那大部分人都会试图保持警惕。
If people knew that other motives might compromise the accuracy of their beliefs, most would probably try to be on their guard.
最好的做法就是保持警惕，身体一有变化就去看家庭医生。
The best thing is to be watchful and see the family doctor for any change in your normal health.
首席执行官格兰特·克罗瑟斯表示：“我们对高澳元压抑回报率保持警惕。”
Chief executive officer Grant Crothers said, "We remain vigilant with the high Australian dollar depressing returns."
骶髂关节的治疗需要时刻保持警惕。
现在起我们应当学会对他们保持警惕。
父母们应该保持警惕。
但研究结果强调，需要继续保持警惕。
But the findings emphasize the need for continued vigilance.
我建议你走路的时候不要听音乐，对周围能保持警惕。
I suggest that you never listen to music while walking in order to stay alert to your surrounding.
在青春期前期，我们一直被告诫要保持警惕。
From early adolescence, we are taught to be on our guard and vigilant at all times.
我知道自己必须保持警惕，以防麋鹿醒来然后跳着站起来。
I knew I had to stay alert in case the elk woke up and leaped into a standing position.
我们将继续保持警惕并在烟草控制的各个方面发挥带头作用。
We will continue to be vigilant and to take the lead on all aspects of tobacco control.
我们时刻、而且必须对该病毒可能改变其行为的任何线索保持警惕。
We are - and we must remain - alert to every hint that the virus may be changing its behaviour.
我们依然需要时刻保持警惕，需要公众向警方报告任何可疑的活动。
There is a continuing need for vigilance and the public should report any suspicious activity to the police.
卫生部同时也提醒所有的医师和医疗机构继续对可疑病例保持警惕。
The Ministry has reminded all medical practitioners and healthcare institutions to continue to be vigilant to suspect cases.
为了让自己冷静下来，我让狗保持警惕，它开始叫了起来。
To calm myself down I told the dog to be on the watch, he started bark ing.
虽然要对“银弹综合症”保持警惕，我还是一直在寻找简化工作的方法。
Although wary of the "silver bullet syndrome," I'm always looking for ways to simplify work.
如果有人请你帮忙为其拍照，保持警惕：这是小偷下手的最好时机。
If someone asks you to help take a photo of him, watch out: this is a prime opportunity for thieves.
正是这种毫不自满、保持警惕的态度，将它们与其它企业区别开来。
It is this non-complacent attitude, with radar locked on, that sets them apart from the rest.
这就是为什么昨天我做了一场小游戏，只是为了让每个人都保持警惕。
That's why I played my little game yesterday, just to keep everybody on his toes.
交易员必须在市场内外寻找微妙价差时保持警惕，并迅速对价格变化做出反应。
Traders must be vigilant as they search for small price discrepancies both within and between markets, and they must be quick to react to changes in these prices.
我对肾上腺素和邓金油炸圈饼保持警惕，你看到我当时膨胀的腰围就知道为何了。
I kept alert on adrenaline and Dunkin Donuts, and I had a bulging waistline to prove it.
最后，对声称能共通过对发丝的分析得出脱发原因的头发专家保持警惕。
Finally, be skeptical of any hair expert who claims to be able to determine thecause of your hair loss simply by analyzing your strands.
最后，对声称能共通过对发丝的分析得出脱发原因的头发专家保持警惕。
Finally, be skeptical of any hair expert who claims to be able to determine thecause of your hair loss simply by analyzing your strands.
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