must not; may not; not permitted
Tone colorsmāmámǎmàma
Meanings
1 sense · 5 examplesverb
must not; may not; not allowed to
formalFunctions as an auxiliary verb expressing prohibition. Used in formal rules, announcements, and warnings. Typically followed by a verb or verb phrase.
Tú图
shū书
guǎn馆
nèi内
bù不
dé得
dà大
shēng声
xuān喧
huá哗
。
Loud talking is not allowed in the library.
Wèi未
jīng经
xǔ许
kě可
，
tā他
rén人
bù不
dé得
jìn进
rù入
。
No one else may enter without permission.
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Cǐ此
wén文
jiàn件
wéi为
jī机
mì密
，
bù不
dé得
wài外
chuán传
。
This document is confidential and must not be disseminated.
Xué学
sheng生
shàng上
kè课
bù不
dé得
wán玩
shǒu手
jī机
。
Students must not use their phones during class.
Cǐ此
dì地
wēi危
xiǎn险
，
yóu游
kè客
bù不
dé得
kào靠
jìn近
。
This area is dangerous; tourists are not allowed to approach.