最終更新日：2025/11/20

(idiomatic, informal) Why; why is it; for what reason or purpose; due to what cause?

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how come

元となった辞書の項目

how come

IPA（発音記号）

/haʊ kʌm/

慣用表現くだけた表現

(idiomatic, informal) Why; why is it; for what reason or purpose; due to what cause?

日本語の意味

どうして / なぜ / どのような理由であるか / 何が原因なのか

How come you didn't tell me you were moving away?

どうして私に引っ越すって教えてくれなかったの？

意味（1）

(idiomatic, informal) Why; why is it; for what reason or purpose; due to what cause?

How come you didn’t leave when you had the chance?