adj. alert ; vigilant ; open-eyed
misc. high strung ; on one's toes
两个警觉的科学家发现了这个错误。
这条有流沙的河每季都要淹死一些不警觉的游客。
With its quicksands the river usually drowns a few unwary visitors every season.
那种警觉的状态会形成某种进化感。
Hobbes does not praise vigilance in defense of liberty and he denounces all efforts to resist the government.
霍布斯并非要,赞扬人民维护自由的警觉态度,而是要谴责那些反抗政府的徒劳之举。
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