Correct

活广告

/ huó guǎng gào /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/活广告-Chinese-idioms-Cchatty-b6a05ff0-d4e0-4af7-92ab-f69f2c0ab1a8-1612777633.jpg

Collocation

1
当活广告
2
成了活广告
3
做活广告

Definition

活广告

Literally means:

living advertisement

Actually means:

It refers to a person or thing that can help publicize something or bring about the same effect as an advertisement does. Commendatory.

指能起广告作用或收到广告效果的真人真事。具有褒义色彩。

Example

Used as object. (作宾语)
1
Zhè
nián
guǎnggào
广告
duàn
不断
fān
huāyàng
花样
  
,
shuō
据说
  
,
lián
yuàn
医院
dōu
huāqián
花钱
yōng
雇佣
guò
过去
de
bìngrén
病人
chūlái
出来
zuòhuó
做活
guǎnggào
广告
  

Over the years, advertising has been a constant ups and downs, and it is said that even hospitals are spending money to hire patients from the past to advertise live.

2
Jīngmíng
精明
de
shāngjiā
商家
yuèláiyuè
越来越
zhòngshì
重视
shòuhòu
售后服务
  
,
yīnwèi
因为
zhèxiàng
这项
gōngzuò
工作
zuò
hǎo
le
  
,
客户
biàn
便
huì
chéngwéi
成为
men
他们
chǎnpǐn
产品
de
huó
guǎnggào
广告
  

Savvy merchants are paying more and more attention to after-sales service, because when this work is done, customers will become live advertising for their products.

3
Zhāoshēng
招生
xúnhuì
咨询会
shàng
  
,
duō
许多
xuéxiào
学校
dōu
qǐng
chū
le
wài
外籍
jiàoshī
教师
lái
zuòhuó
做活
guǎnggào
广告
  
,
wéi
xuésheng
学生
jiāzhǎng
家长
jìnxíng
进行
xiànchǎng
现场
shìfàn
示范
jiàoxué
教学
  

At the admissions consultation, many schools invited foreign teachers to do live advertising for students and parents to conduct on-site demonstration teaching.