Correct

嘴巴紧

/ zuǐ bā jǐn /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/嘴巴紧-Chinese-idioms-Cchatty-c8590fc6-cd89-4397-8938-ee7d61059612-1612776765.jpg

Collocation

1
嘴巴不紧
2
嘴巴很紧
3
嘴巴紧得很
4
某人嘴巴紧

Definition

嘴巴紧:

Literally means:

tight-ipped

Actually means:

It means one is cautious in conversation, and knows what to say and what not to say.

说话谨慎,不说不该说的话。

Example

Used as predicate or object. It can be used with other words in between. (作谓语、宾语,中间可插入其他词语)
1
zuǐba
嘴巴
hěn
jǐn
  
,
huì
不会
xiè
泄露
秘密
  

She has a tight mouth and won't reveal a secret.

2
zuǐba
嘴巴
jǐn
  
,
zhèxiē
这些
机密
de
shìqing
事情
yàoshi
要是
ràng
zhīdào
知道
le
  
,
kěndìng
肯定
huì
shuō
chū
出去
de
  

His mouth is not tight, these confidential things if let him know, he will certainly say it.

3
Zài
gōng
公司
  
,
guǒ
如果
xiǎng
chǔ
处理
hǎo
tóngshì
同事
guānxi
关系
  
,
jiù
必须
zuǐba
嘴巴
jǐn
  
,
liáng
肚量
  

In a company, if you want to deal with a co-worker relationship, you have to have a tight mouth and a big belly.