Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
警觉的
先理解核心含义，再看它在真实句子里的用法。
警觉的；警戒的
carefully observant or attentive; on the lookout for possible danger
a policy of open-eyed awareness
正在加载中文释义…
carefully observant or attentive; on the lookout for possible danger
the vigilant eye of the town watch
there was a watchful dignity in the room
a watchful parent with a toddler in tow
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Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from ECDICT.