vigilant
英 ['v?d??l(?)nt]
美['v?d??l?nt]
- adj. 警惕的；警醒的；注意的；警戒的
英英释意
- 1. carefully observant or attentive; on the lookout for possible danger;
- "a policy of open-eyed awareness"
- "the vigilant eye of the town watch"
- "there was a watchful dignity in the room"
- "a watchful parent with a toddler in tow"