Correct

心中有数

/ xīn zhōng yǒu shù /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/心中有数-Chinese-idioms-Cchatty-89adbb39-d439-4e56-bf40-b089e2eaf69c-1612777058.jpg

Collocation

1
做到心中有数
2
应该心中有数
3
对……(某事)心中有数

Definition

心中有数

Literally means:

have number in mind

Actually means:

not know for certain

It means having a clear idea of something and can handle it with great certainty. It is the opposite of 心中无数.

指对事情相当了解,处理起来比较有把握。相对于“心中无数”。

Example

Used as predicate, object or attributive. It can be used with other words in between. (作谓语、宾语、定语,中间可以插入别的词语)
1
Shuí
zhēnxīn
真心
duì
hǎo
  
,
shuí
shì
wèile
为了
de
qián
cái
duì
hǎo
  
,
zhè
diǎn
lǎotóuzi
老头子
xīnzhōngyǒushǔ
心中有数
  

Who is really good to him, who is good to him for his money, this old man has a number in mind.

2
fàngxīn
放心
  
,
dìng
一定
xiān
qíngkuàng
情况
qīngchǔ
清楚
  
,
zuòdào
做到
xīnzhōngyǒushǔ
心中有数
  
,
zài
kāishǐ
开始
xíngdòng
行动
  

You can rest assured that I must first understand the situation, so that the mind has a number, and then began to act.

3
Zhīyǒu
只有
xīnzhōngyǒushǔ
心中有数
de
shìqing
事情
  
,
zuò
lai
起来
cái
néng
shǎo
dān
fēngxiǎn
风险
  
,
shǎo
huā
dàijià
代价
  

Only in the heart of a number of things, to do less risk, less cost.