Correct

大动脉

/ dà dòng mài /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/大动脉-Chinese-idioms-Cchatty-e8d45862-fbfa-4d27-b517-4c67cfcebef1-1612776831.jpg

Collocation

1
东西大动脉
2
南北大动脉
3
运输大动脉
4
能源大动脉
5
交通大动脉
6
铁路大动脉

Definition

大动脉

Literally means:

main artery

Actually means:

artery of transportation or communication

It literally refers to the main artery, the blood vessels that carry blood from heart to other parts of a human body. Figuratively it means the main channels of transportation or communication.

人体从心脏向全身各部输送血液的主要动脉(大血管)。比喻交通运输的主要通道。

Example

Used as subject or object. (作主语、宾语)
1
Jīng
jiǔ
tiě
铁路
shì
zhōngguó
中国
nánběi
南北
jiāotōng
交通
de
dòngmài
大动脉
  
,
必须
bǎozhèng
保证
24
24
xiǎoshí
小时
chàngtōng
畅通无阻
  

The Beijing-Kowloon Railway is the main artery of China's north-south traffic, and must be kept open 24 hours a day.

2
yùn
大运河
céngjīng
曾经
shì
guó
我国
nánběi
南北
jiāotōng
交通
de
dòngmài
大动脉
  
,
xiànzài
现在
wèi
地位
suīrán
虽然
大大
xiàjiàng
下降
le
  
,
dànshì
但是
zài
huòyùn
货运
fāngmiàn
方面
hái
zài
huī
发挥
dìng
一定
de
zuòyòng
作用
  

The Grand Canal used to be the main artery of North-South traffic in China, but now its status has dropped considerably, but it still plays a role in freight transportation.

3
Zhè
tiáo
liánjiē
连接
nán
西南
sān
shěng
de
dòngmài
大动脉
jiànchéng
建成
tōngchē
通车
hòu
以后
  
,
jiāng
wéi
地区
de
zhǎn
发展
dàilái
带来
hěnduō
很多
huì
机会
  

When the main artery connecting the three provinces in the southwest is completed and opened to traffic, it will bring many opportunities for the development of the transit area.

Related

大动脉