谁知道

• ピンイン: shéi zhī dào
• 漢字の分解: 谁 = 讠+ 隹 (who); 知 = 矢 + 口 (to know); 道 = 首 + 辶 (path, to know)

意味

まさか～とは／誰が知ろう（意外にも）

A colloquial expression used rhetorically — it does not literally ask who knows something, but instead signals that an unexpected or ironic outcome has occurred. Common in storytelling and informal speech.

例文

1. 谁知道一场小误会竟然变成了一段美好的友谊。
2. 我以为那次演讲会失败，谁知道反响出奇地好。
3. 谁知道他离开公司后，反而创业成功了。

使い方ガイド

場面: storytelling, everyday, narrative

トーン: surprised

正しい言い方

• 谁知道当年那个内向的小孩，后来成了著名的演说家。(Who would have known that the shy child back then would become a renowned public speaker.)
• 本以为这次合作会很顺利，谁知道中途出现了这么多变故。(We thought the collaboration would go smoothly, but unexpectedly so many complications arose along the way.)

避ける言い方

• 谁知道 in formal writing — use 出乎意料 or 意想不到 in academic or official contexts instead

起源と歴史

谁 (who) + 知道 (to know) — rhetorical: 'who could have known'

文化的背景

世代: All ages

社会的背景: Universal