So we have to stay vigilant.

所以我们必须保持警惕。

But many insects are also in on the conversation, and vigilant to ultrasonic onslaughts.

但是，许多昆虫也参与了信息交换，并对超声波的攻击保持警惕。

By keeping your mind vigilant and willing to be uncomfortable.

让你的头脑保持警惕，让自己愿意感到不舒服。

NATO said it remained vigilant. BBC news.

北约表示，它将继续保持警惕。BBC新闻。

And he says Hawaiians should remain vigilant.

他表示夏威夷要保持警惕。

" We urge the magician population to remain vigilant."

“我们强烈呼吁魔法界的民众们保持警惕。”

Vigilant central banks probably helped keep investors from growing skittish.

警惕的央行可能帮助投资者保持了警惕。

Being afraid means you're extra aware and extra vigilant.

害怕意味着你是格外警觉和警惕的状态。

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。

The commission says the video is a reminder to stay vigilant.

委员会说，这段视频提醒人们要保持警惕。