摘要：I noticed the bride looking daggers at the best man as he started making vulgar jokes during his speech. （我注意到新娘在伴郎开始讲粗俗的笑话，她怒视着伴郎

look daggers at someone的含义是“怒视某人”，如

【例句1】I noticed the bride looking daggers at the best man as he started making vulgar jokes during his speech. （我注意到新娘在伴郎开始讲粗俗的笑话，她怒视着伴郎。）

【例句2】He looked daggers at her across the room when she mentioned his divorce. （当她提到他的离婚时，他隔着房间狠狠地瞪了她一眼。）

此习惯用语多被词典标为informal。其原因可能有二。

一是“怒视”这样的不友好动作可能被词典不待见。

二是look daggers看起来daggers是look的宾语，但look是不及物动词。

dagger的词义是“匕首”。

笔者认为daggers的词尾s不是复数，而是像always，forwards等副词词尾s的标志，即副词属性格标志。

也就是daggers是副词，含义是“以匕首方式地”，是对“以凶恶方式地”的形象比喻。

来源：布朗白猫