And now the snakes are on the alert.

这些游蛇正虎视眈眈。

" Everybody is on the alert because of what happened with AstraZeneca, "

" 由阿斯利康事件，现在所有人保持警惕。"

On Christmas Eve, the children were on the alert for any sign of Santa Claus.

在圣诞夜，孩子们随时注意圣诞老人出现蛛丝马迹。

A single bull would need to be on the alert to every form of danger.

独行雄龙需要留意各种形式危险。

“My Lord, I was constantly on the alert, ” came Lucius Malfoy's voice swiftly from beneath the hood.

“主人，我一直非常留心，”卢修斯·马尔音迅速从兜帽下面传来。

It turns out that our brains are exquisitely designed to keep us safe and on the alert for danger.

原来我们大脑是被精心计来保护我们安全并保持危险警惕。

His ears, his nostrils were on the alert.

他耳朵， 他鼻孔警戒状态。

Instantly the askaris and the whites were on the alert.

阿卡里人和白人立即警觉起来。

His gallantry was always on the alert.

他勇敢始终警戒状态。

Be on the alert for anyone acting suspiciously.

【alert】警惕举止可疑人。

Despite the Demon Slayer Corps being on the alert, they still got us.

尽管鬼杀队戒备状态，他们还是得逞了。

But with the council back on the alert, it is not a good time for Stefan to fly off the handle.

但是委员会现在又起了疑心，Stefan这样失控可太不是时候了。

The dog too was on the alert in an instant, and ran whining to the door.

狗也立刻警觉起来，呜呜叫着跑到门口。

But Henriette, on the alert, had at once perceived the look with which he had first enveloped Denise.

但是，警惕亨丽埃特立刻察觉到他最初投向丹妮丝目光。

He had been on the alert all the while, trying to catch what the governor and Sipiagin were saying.

他一直保持警惕， 想听懂州长和西皮亚金在说什么。

He was never free from suffering and he was constantly on the alert to prevent anyone from seeing it.

他从来没有摆脱过痛苦， 而且他时刻保持警惕， 以防止任何人看到它。

But with elephants the opposite is true; a single elephant is always on the alert, but a herd is usually more careless.

一头象永远保持警惕状态，而象群却非常随意。

It was impossible to tell what he would do or say next, and you were kept perpetually on the alert.

不可能知道他接下来会做什么或说什么， 你永远保持警惕。

For many minutes Duncan succeeded in keeping his senses on the alert, and alive to every moaning sound that arose from the forest.

有好几分钟，邓肯成功地让自己感官保持警觉，并且对森林中传来每一呻吟保持清醒。

My companion was paralysed by the sudden horror of it, but I, as may well be imagined, had every sense on the alert.

我同伴被这突如其来恐怖吓得瘫痪了， 但我，正如可以想象那样， 完全清醒了。