He is always alert to danger.

他对危险时刻保持警惕。

youdao

Always alert to the latest development of technology and market.

时刻了解技术和市场的最新动向。

youdao

That was the way in Menzoberranzan: always alert, always distrustful.

这就是魔索布莱的作风：始终保持警惕，始终保持怀疑。

youdao

In her explorations of different male subcultures, Ms Faludi is always alert and almost never dull.

ECONOMIST: American men

Williams, always alert, opted to tap the penalty and picked a spot in the Munster line containing two forwards, racing between O'Connell and Jerry Flannery.

BBC: Ospreys 21-25 Munster

But always alert to the danger of modern overinterpretation, she notes the ingenuousness, the innocence inherent in such frankness and, given how little his readers seemed to be aware, she wonders no more how much Melville understood himself.

ECONOMIST: American writers