vigilant

英 ['v?d??l(?)nt] 美['v?d??l?nt]
  • adj. 警惕的；警醒的；注意的；警戒的

英英釋意

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"