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  1. Home /
  2. Dictionaries /
  3. 汉英词典 /
  4. 必须

必须

bìxū
must

你必须完成这项任务。

You must complete this task.


formalinformal

Indicates that something is absolutely necessary or obligatory; used to express strong necessity or requirement.

为了通过考试,你必须努力学习。

To pass the exam, you must study hard.

根据法律,你必须遵守交通规则。

By law, you must obey traffic rules.

Often used in formal contexts to emphasize obligation or necessity.

Collocations

必须做must do必须有must have必须去must go

Synonyms

务必非得一定

Antonyms

可以不无需

Related Phrases

必须如此phrase
must be this way
必须承认phrase
must admit

Pro Tip

Formal vs. Informal

While '必须' is neutral, '务必' is more formal and emphasizes urgency.

Gold Rule

Necessity Emphasis

'必须' is stronger than '需要' (need) and is used when something is non-negotiable.

Word Origin

Composed of '必' (must) and '须' (need), emphasizing strong necessity.

Usage Notes

Commonly used in both spoken and written Chinese to express strong obligation or necessity. Often appears in instructions, rules, or formal contexts.

Word Breakdown

必
must
root
+
须
need
root
汉英词典
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