They illuminated his tired, gray face, but his eyes looked alert and wary.

火光他疲倦发灰的脸，但他的眼睛却是警惕而小心谨慎的。

Feisty Coco keeps mom on her toes.

活泼好动的Coco让妈妈时刻保持警惕。

Enemies of the Heir, beware! You'll be next, Mudbloods!

与继承人为敌者，警惕！下一个就是你，泥巴种！

Kerry said every U.S. embassy and foreign mission will be alerted to this decision.

克里说每个美国使馆和外交使团都对这一决定保持警惕。

Vigilance is necessary if you want to beat the odds.

如果你想打破常规，必须保持警惕。

More worryingly, the weakening link between inflation and unemployment could breed complacency about rising joblessness.

更令人担忧的是, 通胀与失业率之间关系化会降低人们对失业率上涨的警惕性。

We become more energetic, more alert, better able to take effective action. But when stress is encountered continually, the body's reactions are more likely to be harmful than helpful to us.

我们能变得更有精力、更警惕、更好的采取有效的行动。但是当压力连续不断的袭来，身体的反应通常是弊大于益。

Constant vigilance is necessary in order to avoid accidents.

为避免意外事故， 必须经常保持警惕。

While listening to this program, you need to stay on your toes.

当你收听这个节目的时候，你需要保持警惕（stay on your toes）。

The rallies have police on alert for potential street confrontations.

警方对此次机会可能引发的街保持警惕。

Probably because sleepy workers were less alert.

或许是出于昏昏欲睡的工人们警惕性不高的缘故。

So that people could watch their kids and be vigilant.

这样--这样，大家就会看好自家的小孩，保持警惕。

I remember how intoxicating it felt, but I'm always slightly wary of intoxicants, so.

我记得那种沉醉的感觉多么令人陶醉，但我对让人沉醉的事物总是保持一丝警惕，所以。

So people should keep their " antenna" up.

所以人们应该时刻保持警惕。

The group also says better biosecurity surveillance and data sharing will be needed between nations to help flag up future threats to global health.

该组织还表示，各国之间还需加强生物安全监管和数据共享，从而提高对未来全球健康威胁的警惕。

Watch out if your guard is lowered.

别放松警惕。

" The public has to learn to be far more aware they are a target for these sort of frauds."

“公众必须学会提高警惕，他们是这类诈骗的目标对象。”

Maybe you're the real quarry and he's only hunting me to throw you off the scent.

也许你才是他的目标追求我，不过是想打消你的警惕。

Tail held high and wagging indicates the dog is happy but also alert.

尾巴高举着摇动表示它此刻很开心，但仍保持警惕。

Worried people are likelier to be vigilant people, alert to a troubling physical symptom or a loss of some faculty that overly optimistic people might dismiss.

因为容易焦虑的人很可能警惕性很强，对令人不安的身体症状会很敏感，对乐天派可能会无视的某些能力的丧失也是如此。