Correct

唱重头戏

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Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/唱重头戏-Chinese-idioms-Cchatty-3dc5e086-5889-4452-9370-307e13b4923a-1612776748.jpg

Collocation

1
唱重头戏的产品
2
唱重头戏的人
3
在……(某个方面)唱重头戏
4
一直在唱重头戏

Definition

唱重头戏

Literally means:

play a major role in an opera

Actually means:

take on an important task

In order to play a major role in an opera, the actor/actress needs to be good at both singing and acting.

It figuratively means assuming the most important and toughest job.

This phrase metaphorically means taking on a very important or very difficualt task; it also means playing a critical role in some event. Commendatory.

重头戏,唱功和做功都很繁重的戏。比喻工作或活动中最重要、最艰巨的关键部分。

唱重头戏,比喻承担某项重要或艰巨的任务,也指充当重要角色或起重大的作用。具有褒义色彩。

Example

Used as predicate or attributive. (作谓语、定语)
1
ge
那个
ōu
地区
de
nóngchǎnpǐn
农产品
jiāgōng
加工业
jiāng
chéngwéi
成为
zhīzhù
支柱
chǎn
产业
  
,
zài
dāng
当地
de
jīng
经济
zhōng
chàng
zhòngtóu
重头戏
  

The region's agro-processing industry will become a pillar industry, playing a major role in the local economy.

2
Jìnxiēnián
近些年
lái
  
,
zài
yóu
旅游
chǎnpǐn
产品
de
xiāoshòu
销售
zhōng
shǐzhōng
始终
shì
shǒugōngpǐn
手工艺品
zài
chàng
zhòngtóu
重头戏
  

In recent years, in the sale of tourism products has always been handicrafts in the play.

3
Zài
zhège
这个
yánjiūsuǒ
研究所
  
,
chàng
zhòngtóu
重头戏
de
rén
shì
xìng
女性
科技
rényuán
人员
  
,
yǒu
fēnzhī
分之
sān
de
chǎnpǐn
产品
dōu
shì
men
她们
kāi
开发
chūlái
出来
bìng
tuīxiàng
推向
shìchǎng
市场
de
  

At the institute, the top singers are a group of female technocrats, and three-quarters of the products are developed and brought to market.