Correct

左膀右臂

/ zuǒ bǎng yòu bì /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/左膀右臂-Chinese-idioms-Cchatty-d7d6a2ba-447f-49e6-bb72-5665fa6bbe1f-1612777001.jpg

Collocation

1
发挥左膀右臂的作用
2
是……(某人)的左膀右臂
3
成为……(某人)的左膀右臂
4
他们堪称……(某人)的左膀右臂

Definition

左膀右臂

Literally means:

left and right shoulder

Actually means:

It figuratively refers to great helpers or important assistants. Commendatory.

比喻能起很大作用的助手或好帮手。具有褒义色彩。

Example

Used as object or attributive. (作宾语、定语)
1
Zǒngjīng
总经理
suàn
打算
zhè
liǎng
niánqīngrén
年轻人
péiyǎng
培养
chéng
de
zuǒbǎngyòu
左膀右臂
  
,
zhí
一直
yǒu
huà
计划
xùnliàn
训练
men
他们
  

The general manager intends to train the two young men into his left arm and right arm, and has been training them in a planned way.

2
men
你们
zhèxiē
这些
bān
gàn
干部
yào
huī
发挥
zuǒbǎngyòu
左膀右臂
de
zuòyòng
作用
  
,
xiézhù
协助
lǎoshī
老师
zuòhǎo
做好
bān
班里
de
gōngzuò
工作
  

You class cadres should play the role of the left arm and right arm to help teachers do a good job in the class.

3
Yǒu
le
zhè
liǎng
shuòshì
硕士
shēng
毕业生
zuò
de
zuǒbǎngyòu
左膀右臂
  
,
jiù
xiàng
qián
以前
yàng
那样
máng
le
  

With these two master's graduates doing his left arm and right arm, he's not as busy as he used to be.

Related

左膀右臂