Correct

开眼界

/ kāi yǎn jiè /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/开眼界-Chinese-idioms-Cchatty-ff60a352-4532-48ad-a139-11d2e043c8b6-1612777032.jpg

Collocation

1
开开眼界,开一开眼界
2
开阔眼界,开阔某人的眼界
3
开了眼界
4
大开眼界

Definition

开眼界

Literally means:

broaden one's horizon

Actually means:

open one's eyes

It means gaining insight after seeing beautiful or novel things. Commendatory.

看到美好的或者新奇的事物,增长了见识。具有褒义色彩。

Example

Used as predicate or attributive. It can be used with other words in between. (作谓语、定语,中间可加入其他词语)
1
men
他们
第一
guówài
国外
yóu
旅游
  
,
kāi
le
yǎnjiè
眼界
  
,
xiàn
发现
wàimiàn
外面
de
shìjiè
世界
zhēn
jīngcǎi
精彩

Their first trip abroad was an eye-opener and they found the outside world so wonderful

2
Fàngjià
放假
jiān
期间
  
,
háizi
孩子
men
cānguān
参观
le
guǎn
科技馆
shuǐguǎn
水族馆
  
,
kāiyǎnjiè
大开眼界
le
  

During the holidays, the children visited the Science and Technology Museum and Aquarium, but it was an eye-opener.

3
Zhè
这次
yǒu
shí
duō
jiā
rén
私人
企业
bào
zhāo
kāiyǎn
开眼
  
jiāopéngyou
交朋友
de
xīntài
心态
cānjiā
参加
le
zhōngfēi
中非
lùntán
论坛
  
,
wàng
希望
néng
zhǎodào
找到
xīn
de
tóu
投资
huì
机会
  

This time, more than a dozen private companies took part in the China-Africa Forum with an eye-opening and friend-making mentality, hoping to find new investment opportunities.