how come? Definition in the Cambridge English Dictionary Cambridge dictionaries logo

Definition of “how come?” - English Dictionary

"how come?" in British English

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how come?

informalC1 used to ​ask how or why something has ​happened: So how come you ​missed the ​train? "We had to ​stop in Birmingham." "How come?"

how come?

informalC1 used to ​ask about the ​reason for something: So how come you got an ​invitation and not me? "I don't ​think I'll be ​able to go ​swimmingtomorrow." "How come?"
(Definition of how come? from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
Translations of “how come?”
in Chinese (Simplified) 为什么?怎么会?…
in Chinese (Traditional) 為甚麼?怎麼會?…
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