Correct

攻坚战

/ gōng jiān zhàn /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/攻坚战-Chinese-idioms-Cchatty-b71fe827-54ca-4e38-89e0-e124196ecc89-1612777387.jpg

Collocation

1
展开攻坚战
2
打响了攻坚战
3
打好攻坚战
4
面临一场攻坚战

Definition

攻坚战

Literally means:

storming of heavily fortified positions

Actually means:

effort to crack a hard nut

It literally refers to a fight against the enemy's heavily fortified position.

This phrase figuratively means a challenging job to overcome great difficulties.

攻打敌人坚固阵地的战斗。

比喻需要克服种种重大困难的工作。

Example

Used as object. (作宾语)
1
Zhì
治理
huánjìng
环境
rǎn
污染
dàn
不但
shì
cháng
gōngjiānzhàn
攻坚战
  
,
érqiě
而且
shì
cháng
chíjiǔzhàn
持久战
  
,
shi
tiān
liǎng
tiān
néng
gǎohǎo
搞好
de
  

The control of environmental pollution is not only a battle, but also a long-lasting war, not two days a day can do well.

2
Zài
zhè
qiú
足球
sài
比赛
zhōng
  
,
guóduì
德国队
jiāng
miànlín
面临
cháng
gōngjiānzhàn
攻坚战
  
,
yīnwèi
因为
duì
巴西队
shì
hěn
nán
duìfu
对付
de
  

In this football match, the German team will face a tough battle, because the Brazilian team is very difficult to deal with.

3
Huàndài
换代
hòu
de
xīn
gōng
工艺
de
yánzhì
研制
rènwu
任务
suīrán
虽然
hěn
jiān
艰巨
  
,
dàn
men
他们
yǒu
xìnxīn
信心
hǎo
zhè
cháng
gōngjiānzhàn
攻坚战
  

Although the task of developing the new technology after the replacement is very difficult, they are confident that they can fight the battle well.