Correct

合不拢嘴

/ hé bù lǒng zuǐ /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/合不拢嘴-Chinese-idioms-Cchatty-b135e22a-65d9-4d96-b1fa-bf1e5d6581a3-1612776680.jpg

Collocation

1
让人合不拢嘴
2
惊奇得合不拢嘴
3
惊异得合不拢嘴
4
笑得合不拢嘴
5
乐得合不拢嘴

Definition

合不拢嘴:

Literally means:

can not close one's mouth; be extremely happy or shocked.

Actually means:

It means that one laughs with a wide open mouth wid due to his happiness, and one's mouth also remain wide open when he or she was shocked.

合不拢嘴,因为非常高兴而笑得嘴巴都合不起来,或者因为非常惊奇而张大嘴巴,合不起来。

Example

Used as complement. (作补语)
1
Kànjiàn
看见
duō
许多
rén
zhāo
xiānhuā
鲜花
lái
zhù
祝贺
di
弟弟
kǎo
考取
xué
大学
  
,
ma
妈妈
xiào
de
lǒngzuǐ
合不拢嘴
  

Seeing many people holding flowers to congratulate their brother on his college entrance, my mother could.

2
Zhāng
张娜
zài
sài
比赛
hòu
bèi
píngwéi
评为
zuìjiā
最佳
qiúyuán
球员
  
,
huáibào
怀抱
zuìjiā
最佳
qiúyuán
球员
jiǎngbēi
奖杯
de
de
乐得
lǒngzuǐ
合不拢嘴
  

Zhang Na was named the best player after the game, holding the best player trophy, she doesn't close her mouth.

3
de
zhèxiē
这些
jīngxiǎn
惊险
zāo
遭遇
suīrán
虽然
dōu
guò
过去
le
  
,
dànshì
但是
tīng
qilai
起来
háishi
还是
huì
jīng
惊奇
de
lǒngzuǐ
合不拢嘴
de
  

All his adventures are over, but you still sound surprised.

Related

合不拢嘴