Correct

一日不见,如隔三秋

/ yī rì bú jiàn rú gé sān qiū /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/一日不见如隔三秋-Chinese-idioms-Cchatty-447fd44e-fa82-45b3-9db2-dd84163c08f5-1612776098.jpg

Collocation

1
感到一日不见,如隔三秋啊
2
真是一日不见,如隔三秋
3
有一日不见,如隔三秋的体验

Definition

一日不见,如隔三秋:

Literally means:

a day's separation seems as long as three autumns

Actually means:

三秋, three autumns, refers to three years.

It means missing very much. It also refers to very slow progress.

三秋,三年。

一日不见,如隔三秋,一天不见面,就好像隔了三年没有见面一样。形容特别思念。也形容进展缓慢。

Example

Used as a minor sentence, or as attributive or object. (作小句、定语、宾语)
1
Lǎo
老哥
  
,
jiàn
一日不见
  
,
sānqiū
如隔三秋
  
,
zhēn
xiǎng
ya
  
!
Shēn
身体
hǎo
ma
  
?

Brother, don't see you all day, such as every three autumns, really miss you! How's your health?

2
Chǔ
处于
liàn
热恋
zhōng
de
qíngrén
情人
  
,
bān
一般
huì
yǒu
jiàn
一日不见
  
,
sānqiū
如隔三秋
de
yàn
体验
  

Lovers in love, generally will not see one day, such as the experience of three autumns.

3
Zhè
这里
shi
méiyǒu
没有
jìn
进步
  
,
érshì
而是
jìn
进步
tài
màn
le
  
,
ràng
xìng
性急
de
rén
juéde
觉得
jiàn
一日不见
  
,
sānqiū
如隔三秋
  

Here is not no progress, but progress is too slow, so that anxious people feel that the day does not see, such as every three autumns.