之所以

• ピンイン: zhī suǒ yǐ
• 漢字の分解: 之 = connection particle; 所 = place/that which; 以 = by means of/because

意味

〜する理由は…だ

A formal, literary structure used in explanatory writing and speeches. The pattern 之所以...是因为... (the reason... is because...) emphasises causation. More formal than simple 因为.

例文

1. 他之所以成功，是因为多年来的坚持与努力。
2. 之所以推迟会议，是因为关键人员临时有事无法出席。
3. 这座城市之所以闻名于世，在于其独特的历史文化底蕴。

使い方ガイド

場面: academic, speeches, explanatory writing

トーン: analytical

正しい言い方

• 产品之所以畅销，是因为质量过硬且价格合理。(The reason the product sells well is because the quality is solid and the price reasonable.)
• 我之所以提出这个建议，是基于长期的市场观察。(The reason I put forward this suggestion is based on long-term market observation.)

避ける言い方

• 之所以我饿了 — too formal for casual speech; simply use 因为我饿了; reserve 之所以 for formal explanations

起源と歴史

之 (classical particle) + 所以 (the reason) — the reason for which

文化的背景

世代: All ages

社会的背景: Universal