Correct

起五更,睡半夜

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Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/起五更睡半夜-Chinese-idioms-Cchatty-6f450342-be00-45c9-b7d3-4d114ab3a910-1612778235.jpg

Collocation

1
起五更,睡半夜地劳作
2
起五更,睡半夜的日子
3
不愿意起五更,睡半夜
4
他天天起五更,睡半夜

Definition

起五更,睡半夜

Literally means:

burn the midnight oil and get up before day breaks

Actually means:

五更 refers to the time just before dawn.

The phrase means one is extremely busy and has to go to bed late and gets up early.

五更,天快亮的时候。

起五更,睡半夜,形容起得早睡得晚,辛苦忙碌。

Example

Used as predicate, adverbial adjunct or attributive. (作谓语、状语、定语)
1
guǒ
如果
shi
不得已
  
,
shuí
dōu
yuàn
愿意
gēng
五更
  
,
shuì
bàn
半夜
  
,
shuìmián
睡眠
不足
  
,
chīfàn
吃饭
xiāng
  

If it is not a last last minute, no one wants to get up five more, sleep in the middle of the night, sleep is not enough, eat is not fragrant.

2
Gōng
公司
gānggang
刚刚
chéng
成立
de
nián
  
,
měitiān
每天
dōu
gēng
五更
  
,
shuì
bàn
半夜
gōngzuò
工作
  
,
dào
yuè
jiù
shòu
le
shí
duō
jīn
  

The company just set up that year, he started five more every day, sleep in the middle of the night to work, less than a month on the weight of more than ten pounds.

3
Yóu
由于
shēngxué
升学
kǎoshì
考试
de
压力
hěn
  
,
xiànzài
现在
几乎
suǒyǒu
所有
de
zhōngxuéshēng
中学生
dōu
guò
zhāo
gēng
五更
  
,
shuì
bàn
半夜
de
zi
日子
  

Because of the pressure of the entrance examination, almost all middle school students now live five more, sleep in the middle of the night.