这组表示"警觉"的英语词汇在语义侧重和搭配用法上存在以下差异:
1. Watchful
词义侧重:持续性观察
搭配特点:+over/for
例句:The shepherd kept a watchful eye over the flock.
(牧羊人警惕地看护着羊群)
典型场景:监护、夜间值守
2. Vigilant
词义侧重:高度戒备状态
搭配特点:+against
例句:Customs officers must remain vigilant against drug smuggling.
(海关官员必须 ...(以上内容有节略,please sign in for more)
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