Correct

雷打不动

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Strokes
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Collocation

1
雷打不动的制度
2
雷打不动地……
3
是雷打不动的
4
都雷打不动

Definition

雷打不动

Literally means:

not to be shaken by thunders

Actually means:

unshakeable or unyielding

It means someone or something is very firm and sustainable. This phrase metaphorically means when something is decided on, it should be carried on to the end and should not be given up.

指非常坚定,不可动摇。常用来形容规定好要做的事情,不管出现什么情况都要坚持做到底,不动摇,不改变。

Example

Used as predicate, object or adverbial adjunct. (作谓语、宾语、状语)
1
Zhíxíng
执行
guīzhāngzhì
规章制度
dìng
一定
yào
léidòng
雷打不动
  
,
néng
yǒushí
有时
zhíxíng
执行
  
,
yǒushí
有时
zhíxíng
执行
  

The implementation of rules and regulations must not be lightning, can not be sometimes implemented, sometimes not enforced.

2
rán
既然
zhì
制度
jīng
已经
dìng
chūlái
出来
le
  
,
jiù
yīnggāi
应该
léidòng
雷打不动
zhíxíng
执行
  

Now that the system has been put in place, it should be carried out without lightning.

3
měitiān
每天
zǎoshang
早上
zhìshǎo
至少
yào
mànpǎo
慢跑
xiǎoshí
小时
  
,
léidòng
雷打不动
  
,
shǐ
即使
hánlěng
寒冷
de
dōngtiān
冬天
wài
例外
  

He jogs for at least an hour every morning, and the thunder can't move, even in the cold winter.

Related

雷打不动