Correct

放空炮

/ fàng kōng pào /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/放空炮-Chinese-idioms-Cchatty-3ac34bb8-c65e-4eb5-b514-15c6d1e3c785-1612777396.jpg

Collocation

1
放空炮的人
2
不要放空炮
3
总是放空炮
4
老放空炮

Definition

放空炮

Literally means:

fire empty cannon

Actually means:

It metaphorically means an empty talk, i.e. being unable to accomplish what one has promised. It connotes criticism. Derogatory.

比喻说空话,说出来的事办不到或不能兑现。含有批评意味。具有贬义色彩。

Example

Used as predicate, object or attributive, and it can be used in the form of inversion. (作谓语、宾语、定语,也可以倒装)
1
men
你们
biè
yòu
fàngkōng
放空
pào
  
,
jìng
shuō
xiē
一些
duìxiàn
兑现
le
de
shìqing
事情
  
Zhèzhǒng
这种
kōngpào
空炮
fàng
duō
le
  
,
huì
yǐngxiǎng
影响
men
你们
de
xìn
信誉
  

Don't empty your guns again and again and say something that can't be done. This kind of air cannon will affect your credibility.

2
yào
shuōdàozuòdào
说到做到
  
,
yào
不要
fàngkōng
放空
pào
  
,
ràng
rénjiā
人家
xiàohuà
笑话
  

You have to say do it, don't empty the gun, let people laugh at you.

3
shi
fàngkōng
放空
pào
de
rén
  
,
méiyǒu
没有
fàngkōng
放空
pào
de
běnshì
本事
  
,
suǒ
所以
zuò
dào
de
shìqing
事情
gǎn
xiāshuō
瞎说
  

I'm not the one who lets the gun go, and I don't have the craft to air the gun, so I can't say anything.

Related

放空炮