how come (…)?
成語所屬單字come
how come (…)? — 慣用語
1. This is used to ask why something happened or how it is possible.
1.慣用語
釋義
為什麼？怎麼會？
This is used to ask why something happened or how it is possible.
例句
How come you are late again today?
He speaks French fluently. How come?