Correct

披外衣

/ pī wài yī /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/披外衣-Chinese-idioms-Cchatty-61478942-6357-4353-9512-17a622efba6e-1612777234.jpg

Collocation

1
披着合法的外衣行骗
2
披着……的外衣
3
披着各种漂亮的外衣

Definition

披外衣

Literally means:

putting an overcoat on one's shoulder

Actually means:

under a legitimate cover

Literally it means putting an overcoat on one's shoulder. It figuratively means doing something unreasonable or illegal under a legitimate cover. Derogatory.

把外衣搭在肩背上。比喻用合情合理或正当的名义做不合情理或不正当的事。具有贬义色彩。

Example

Used as predicate, attributive or adverbial adjunct. It can be used with other words in between. (作谓语、定语、状语,中间可以插入别的词语)
1
xiē
一些
rén
yǒu
有意
kuā
夸大
bǎojiànpǐn
保健品
de
gōngnéng
功能
  
,
zhāo
wéi
zhòng
大众
jiànkāng
健康
服务
de
wài
外衣
zuō
wéi
违法
de
shìqing
事情
  

Some people deliberately exaggerate the function of health care products, wearing the cloak of serving the public health as illegal things.

2
Zuìjìn
最近
yǒurén
有人
zhāo
yǒuqíng
友情
gàozhī
告知
de
wài
外衣
  
,
piàn
骗取
yínháng
银行
yòng
用户
zhàngháo
帐号
  
,
cóngér
从而
dào
达到
piàn
骗取
qiáncái
钱财
de
目的
  

Recently, some people wearing the cloak of "friendship notice", defrauded the bank user account number, so as to achieve the purpose of swindling money.

3
yán
寓言
zhōng
yǒu
zhāo
yáng
羊皮
de
láng
yáng
chī
diào
de
shì
故事
  
,
ér
xiànshí
现实
zhōng
不乏
zhāo
zhǒng
各种
piàoliang
漂亮
wài
外衣
de
huàirén
坏人
  

The fable has the story of a wolf in sheep's clothing eating a sheep, and in reality there are no shortage of bad guys in all kinds of beautiful coats.