He warned the public to be vigilant and report anything suspicious.
他告诫公众要保持警惕，报告任何可疑情况。
Therefore, we must be vigilant!
所以大家一定要警惕！
我们要警惕。
Of course, it is a good thing to be vigilant.
当然了，保持警惕是件好事。
For this reason, he adds, we must be vigilant.
他还说，我们必须对此保持警惕。
If this is true, we must certainly be vigilant.
这如果是事实，就很值得我们警惕！
The need to be vigilant is even more urgent now.
如今，这些问题更加迫切地需要引起人们的警惕。
All personnel should be vigilant against fire hazards.
所有的工作人员都应警惕火险。
They can become very sick very quickly so be vigilant.
他们的病可以非常迅速地转坏，所以必须提高警觉。
Love of women must be vigilant to do a rose, beautiful and even pain.
爱恋中的女子，一定要警觉做一朵蔷薇，哪怕艳丽而痛楚。
So be vigilant about cleaning, especially if someone in your home is ill.
因此要对清洁保持高度警醒，尤其是当你的家里有患者。
However, surprises can and do happen and, as ever, it will pay to be vigilant.
然而意外总能并且确实会发生，就和往常一样，因此保持警惕总是好的。
Competition concept: Be vigilant in peace time, keep a sense of tribulation.
竞争观：居安思危，时刻保持忧患意识。
This progress could be lost if we are not vigilant.
如果我们不保持警觉，上述进展就可能消失。
Be especially vigilant with the kids when they go to swim.
孩子们去游泳的时候尤其要保持警惕。
Even the most vigilant may not be up to the task of controlling their impulses.
即使最警惕的人也无法成功控制他们的冲动。
We're vigilant, and know that freedom must be defended.
我们是警醒的，而且知道自由一定被防护。
They are masters of it, so you must be ever vigilant.
他们是玩弄这些把戏的能手，所以你们必须变得更加的警惕。
And while such things can never be forgotten, we must remain vigilant in our cause!
不过虽然我们绝对不能忘记这件事，但我们必须更加的保持着警戒之心！
And while such things can never be forgotten, we must remain vigilant in our cause!
不过虽然我们绝对不能忘记这件事，但我们必须更加的保持着警戒之心！
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