surely, certainly

HSK 5 5
Stroke order animation for 必

この漢字を含む単語

Usage of

The character (bì) is used to express necessity or certainty, often translated as "must," "surely," or "necessarily." It is a strong modal adverb or adjective that emphasizes something is unavoidable or required.

Common Collocations

  • 必须 (bìxū): must, have to — used to express obligation or necessity.
  • 必然 (bìrán): inevitable, necessarily — used to indicate something is bound to happen.
  • 必不可少 (bì bù kě shǎo): absolutely indispensable — emphasizes something is essential.

Usage Notes

is often combined with verbs or adjectives to strengthen the sense of obligation or inevitability. It is more formal and stronger than just using (yào) or (děi). When using , the tone is assertive and leaves little room for choice.

Common Confusion

is sometimes confused with , which also means "must" or "need to." However, is more general and can be softer or more polite, while conveys a stronger, more formal necessity.

Summary

Use when you want to emphasize that something is absolutely necessary or certain. It appears frequently in formal writing, instructions, and serious contexts.

例文

你必須完成這個任務。

Nǐ bìxū wánchéng zhège rènwù.

You must complete this task.

成功必然需要努力。

Chénggōng bìrán xūyào nǔlì.

Success necessarily requires effort.

這件事必不可少。

Zhè jiàn shì bì bù kě shǎo.

This matter is absolutely indispensable.