Usage note
不必表示没有必要。
bú bì biǎo shì méi yǒu bì yào。
No need means something is unnecessary.
Context note
不必常出现在安慰、回应和建议里。
bú bì cháng chū xiàn zài ān wèi 、 huí yìng hé jiàn yì lǐ。
No need often appears in comforting, responses, and advice.
5 examples
不必着急。
bú bì zháo jí。
No need to rush.
不必担心。
bú bì dān xīn。
No need to worry.
你不必来了。
nǐ bú bì lái le。
You do not need to come.
不必客气。
bú bì kè qì。
No need to be polite.
这件事不必现在做。
zhè jiàn shì bú bì xiàn zài zuò。
This does not need to be done now.
5 mini stories
老师说不必着急，慢慢写就行。
lǎo shī shuō bú bì zháo jí， màn màn xiě jiù xíng。
The teacher said no need to rush, just write slowly.
妈妈让我放心，说不必担心。
mā ma ràng wǒ fàng xīn， shuō bú bì dān xīn。
Mom told me not to worry.
朋友帮了我，我说不必客气。
péng yǒu bāng le wǒ， wǒ shuō bú bì kè qì。
My friend helped me, and I said no need to be polite.
今天不必做很多事，先休息一下。
jīn tiān bú bì zuò hěn duō shì， xiān xiū xi yí xià。
There is no need to do a lot today; rest first.
他已经知道路了，所以我说不必再带路。
tā yǐ jīng zhī dào lù le， suǒ yǐ wǒ shuō bú bì zài dài lù。
He already knows the way, so I said there was no need to guide him again.
Mini dialogue
不用着急
A
要下雨了，我们跑回家吧！
Yào xià yǔ le, wǒmen pǎo huí jiā ba!
It's going to rain, let's run home!
B
不必跑，我带了伞。
Búbì pǎo, wǒ dài le sǎn.
No need to run, I brought an umbrella.
简单的感谢
A
谢谢你帮我拿书包。
Xièxie nǐ bāng wǒ ná shūbāo.
Thank you for helping me carry my schoolbag.
B
不必客气，我们是朋友。
Búbì kèqì, wǒmen shì péngyou.
No need to be so polite, we are friends.
Related words and contrasts
similar
不用
búyòng
no need; don't have to
不必 and 不用 both mean something is not necessary.
opposite
必须
bìxū
must; have to
不必 means no need; 必须 means you must do it.