Correct

面不改色心不跳

/ miàn bù gǎi sè xīn bù tiào /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/面不改色心不跳-Chinese-idioms-Cchatty-d7197d25-17a9-43d5-96a1-5b87de15adc5-1612778406.jpg

Collocation

1
做到面不改色心不跳
2
还是面不改色心不跳
3
能够面不改色心不跳
4
撒谎面不改色心不跳
5
他面不改色心不跳

Definition

面不改色心不跳

Literally means:

the face does not change color, the heart does not beat

Actually means:

remain calm; keep a poker face

It means remaining composed and calm. It is often used to indicate that one is not alarmed or confused in times of emergency.

形容心里不慌,非常镇定的样子。多用于说明在紧急情况下沉着而不慌乱。

Example

Used as predicate, object or complement. (作谓语、宾语、补语)
1
Zhèshí
这时
  
,
sān
dǎi
歹徒
cháo
wéi
le
guòlái
过来
  
,
shì
可是
miàngǎixīntiào
面不改色心不跳
  
,
sān
xià
liǎng
xià
jiù
zhì
制服
le
zhè
ge
huàidàn
坏蛋
  

At this time, three gangsters surrounded him, but he did not change his face do not jump, three times two times to subdue these bad guys.

2
Zhè
shì
guàntōu
惯偷
  
,
jǐngchá
警察
zài
zuòàn
作案
xiànchǎng
现场
dǎizhù
逮住
shí
  
,
háishi
还是
miàngǎixīntiào
面不改色心不跳
  
,
xiàng
méishìrén
没事人
yàng
一样
  

This is a habitual theft, the police at the scene of the crime to catch him, he still do not change his face, like a person.

3
shì
fēicháng
非常
yǒnggǎnderén
勇敢的人
  
,
guǎn
不管
dào
遇到
shénme
什么
wēixiǎn
危险
  
,
dōu
néng
de
zuòdào
做到
miàngǎixīntiào
面不改色心不跳
  
,
diǎn
huāngluàn
慌乱
  

He is a very brave man, no matter what danger, can take the face does not change the color heart does not jump, not panic at all.