Correct

新账老账一起算

/ xīn zhàng lǎo zhàng yì qǐ suàn /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/新账老账一起算-Chinese-idioms-Cchatty-17fdbdf8-c5ae-4d11-8dda-a9a281accdea-1612777414.jpg

Collocation

1
必须新账老账一起算
2
等问题多了才新账老账都一起算
3
这新账老账一起算

Definition

新账老账一起算

Literally means:

settle all accounts new and old

Actually means:

新账, new accounts, refers to the problems, mistakes or crimes in hand; 老账 refers to previous problems, mistakes or crimes.

This phrase means while the new mistakes or crimes are under the investigation, old problems will also be looked into.

新账,当前的问题、错误或罪行。老账,以前的问题、错误或罪行。

指在追究当前错误或罪行时,连同以前的一起清算。

Example

Used as predicate or object. It can be used with other words in between. (作谓语、宾语,中间可以插入别的词语)
1
Shàng
liǎng
zuòcuò
做错
liǎoshì
了事
méiyǒu
没有
chǔ
处罚
  
,
zhè
这次
yòu
zuò
huàishì
坏事
  
,
jiù
xīn
zhàng
lǎozhàng
老账
一起
suàn
  

The last two times you did something wrong did not punish you, this time you did bad things, then the old account together.

2
qián
以前
tōu
dōng
东西
méi
bèi
zhuā
zhāo
  
,
zhè
这次
bèi
zhuā
zhāo
le
  
,
kànlai
看来
yào
xīn
zhàng
lǎozhàng
老账
一起
suàn
le
  

He had stolen things before and had not been caught, this time caught, it seems that the new accounts together with the old accounts.

3
men
他们
duì
háizi
孩子
de
cuò
错误
wǎngwǎng
往往
shí
及时
chǔ
处理
  
,
zǒngshì
总是
děng
wèn
问题
duō
le
cái
xīn
zhàng
lǎozhàng
老账
dōu
一起
suàn
  
Zhèzhǒng
这种
zuò
做法
wǎngwǎng
往往
xiàoguǒ
效果
hěn
chā
  

Their children's mistakes are often not dealt with in time, always more problems before the new accounts and old accounts are calculated together. This practice is often ineffective.