Correct

松口气

/ sōng kǒu qì /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/松口气-Chinese-idioms-Cchatty-0ab8ef3e-7a6a-48d2-bf14-7cbac2b23fca-1612777515.jpg

Collocation

1
松了一口气
2
能够松口气
3
可以松口气

Definition

松口气

Literally means:

heave sign of relief

Actually means:

heave sign of relief

It means alleviating or eliminating the tension. Commendatory.

减轻或消除原先的紧张状态。具有褒义色彩。

Example

Used as predicate or object. It can be used with other words in between. (作谓语、宾语,中间可插入别的词语)
1
Shùxué
数学
kǎoshì
考试
le
  
,
jiā
大家
dōu
sōng
le
kǒu
一口气
  
,
zài
不再
dānxīn
担心
及格
huò
及格
de
shì
le
  

Mathematics is not tested, we are all relieved, no longer worry about passing or failing things.

2
Zhège
这个
jiēduàn
阶段
de
sài
比赛
zhōng
终于
jiéshù
结束
le
  
,
cānjiā
参加
sài
比赛
de
tóngxué
同学
可以
sōngkǒu
松口气
le
  

This stage of the game is finally over, the students can also breathe a sigh of relief.

3
yǒu
liǎng
gèr
zài
儿子
shàng
xué  
大学
  
,
jīng
经济
dān
负担
hěn
chóng
  
,
zhīyǒu
只有
děng
men
他们
毕业
le
hòu
以后
  
,
cái
néng
sōngkǒu
松口气
  

He has two sons in college, the financial burden is very heavy, only after they graduate, can breathe a sigh of relief.