What is the difference between 必需 and 必须？

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May 04 • 934 read

“必需” V./ Adj. （动词/形容词）
[essential; indispensable; necessary] 一定要有的；不能少的（东西）。
We usually use 必需 with noun. Ex. 生活必需榀、必需的东西
“必须” Adv. （助动词/副词）
[must; have to] 必定；一定要。
We normally use 必须 with verb. Ex. 必须努力、必须做到

That's all I know. If anyone know about theses word more, please share!!

Answer

zxlazsh Teacher

必须
[must;have to] 必定;一定要

工作必须严格认真

必须指出
必需 bìxū

必需
[essential;indispensable;necessary] 非有不可的;不能少的

发展工业所必需的原料

空气是生活所必需的

你在说话时大多用的是“必须”

(more)

2 • Reply • May 05

Shirley Zhou

必须Must, expresses the necessity in matters and reason. It has a somewhat commanding tone, that is, it means that it must be necessary. For example: You must come to work tomorrow.
必需Necessary means that it is necessary and indispensable. For example: Food is necessary food for human beings.

2 • Reply • May 10

zheng Teacher

必须more to a moral or emotional necessity, with a demanding tone.
必需more to a necessary requirement for something.

3 • Reply • May 04