Correct

一是一,二是二

/ yī shì yī èr shì èr /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/一是一二是二-Chinese-idioms-Cchatty-84dd9299-9c1a-46ea-abbe-b32ec3a2c2fa-1612776100.jpg

Collocation

1
说一是一,说二是二
2
咱们一是一,二是二

Definition

一是一,二是二:

Literally means:

one is one, two is two

Actually means:

call spade a spade

It refers to being candid and plainspoken or being sober in principle. It also refers to doing things earnestly and carefully.

指实事求是,不弄虚作假,或界限分明,不混淆不清。也指做事认真,不马虎。

Example

Used as predicate or object. (作谓语、宾语)
1
zhège
这个
lǎoshirén
老实人
shì
  
,
èr
shì
èr
  
,
shuō
jiǎhuà
假话
  
,
mài
jiǎhuò
假货
  

He is an honest man one, two is two, do not tell lies, do not sell fake goods.

2
Zánmen
咱们
shì
  
,
èr
shì
èr
  
,
péngyou
朋友
guī
péngyou
朋友
  
,
mǎimài
买卖
guī
mǎimài
买卖
  
Xiànzài
现在
men
我们
shì
zài
zuò
mǎimài
买卖
  
,
tiáojiàn
条件
dìng
一定
yào
jiǎng
qīngchu
清楚
  

We are one, two is two, friends to friends, business to buy and sell. Now we are doing business, the terms must be clear.

3
Zhège
这个
niánqīngrén
年轻人
zuò
shìqing
事情
lái
  
,
zǒngshì
总是
shì
  
,
èr
shì
èr
  
,
cónglái
从来
hu
马虎
  

The young man always does things one, two is two, never sloppy.