`The dogs do right to be vigilant.
“狗是应该警觉的。
an alert bank guard
警觉的银行保安人员
Keep your head down, sir. Those guards have their safety catches off.
长官，头放低一点。这些警卫警觉的很。
keenly perceptive or alert.
敏锐的感知力的，或警觉的。
The alert leopard went up to a deer quietly.
警觉的豹子静悄悄地走近一只鹿。
Nor fear those watchful sentinels,
我也并不畏惧那此警觉的门岗：
His vigilance never languished.
他的警觉从未松懈下来。
The fleeing convicts were picked out of the darkness by the watchful prison guards; I can't make out the faces in this photograph.
犯人在夜间的越狱被警惕的狱警察觉了。
For the attention of the it, profession with painful scold, the friend's vigilance.
为之，行业的注意和痛骂，朋友的警觉。
Entrepreneurial Alertness:Mental Schema to Opportunity Recognition;
企业家的警觉性:机会识别的心理图式
Close attention or vigilance to minimize risk.
对最小风险的严密注意或警觉。
It felt like the warning of what I feel now.
那种感觉仿佛是对我此刻的警告。
And right off I was on guard against Mencken's books.
我马上就对门肯的书警觉起来了。
She was always on the alert for some new calamities.
她总是保持警觉以防某种新的灾难。
You must be alert to the coming danger.
你必须对于正在接近的危险保持警觉。
he exercised caution in opening the door; he handled the vase with care.
他小心翼翼发挥最大的警觉。
Then the islanders had to watch the ice keenly.
那时节，岛上的人们警觉地注视着冰块。
There's also alarm at the rate of deforestation in Indonesia.
此外，印尼森林消失的速度也令人警觉。