不必

• 拼音: bù bì
• 汉字拆解: 不 = pictograph of a bird flying up and being blocked, meaning not; 必 = 心 (heart) + a stroke through it, meaning certainly/must

含义

Need not; not necessary. A polite way of saying something does not need to be done.

More formal than 不用 but carries the same meaning. Often used to reassure someone or to politely decline help. Common in both spoken and written Chinese, especially in slightly formal situations.

例句

1. 你不必担心，一切都会好的。
2. 这件事不必太着急，慢慢来。
3. 不必客气，这是我应该做的。

用法指南

语境: polite speech, reassurance, everyday

语气: reassuring

正确说法

• 你不必特意来接我。(You don't need to come pick me up specially.)
• 不必紧张，考试不难。(No need to be nervous, the exam isn't hard.)

错误说法

• 我不必吃饭了 as a casual refusal (In casual contexts, 不用 sounds more natural than 不必, which can feel overly stiff among friends)

起源与历史

Compound of 不 (not) and 必 (must, certainly), literally 'not necessarily must.'

文化背景

世代: All ages

社会背景: Universal