Correct

露原形

/ lù yuán xíng /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/露原形-Chinese-idioms-Cchatty-a4c28100-1afc-46fb-a9b1-fe7e3d826c31-1612778393.jpg

Collocation

1
就露原形
2
露了原形
3
露出原形
4
终于露出了原形

Definition

露原形

Literally means:

reveal one's true colors

Actually means:

betray oneself

露 means revealing; 原形 means what one really is.

The whole phrase means the false disguise is removed and the real nature or the true fact is revealed. Derogatory.

露,暴露。原形,原来的形状,本来的面目。

露原形,指虚假的表面被揭开或伪装被除掉,暴露出本来的性质或情况。具有贬义色彩。

Example

Used as predicate, and it can have other words in between. (常作谓语,中间可以插入其他词语)
1
Zhèzhǒng
这种
yànchāo
验钞机
néng
yǒuxiào
有效
biànbié
辨别
zhēnjiǎ
真假
  
,
jiǎ
假币
jīng
sǎomiáo
扫描
  
,
立即
xiǎn
显露
yuánxíng
原形
  

This kind of money checking machine can effectively distinguish between true and false, counterfeit currency by its scanning, immediately revealed the original shape.

2
Zhèzhǒng
这种
suǒwèi
所谓
róng
速溶
fēi
咖啡
chōng
jiù
yuánxíng
原形
  
,
zhīyǒu
只有
jiāowèi
焦味
ér
méiyǒu
没有
xiāngwèi
香味
  
,
yuánlái
原来
shì
kǎojiāo
烤焦
de
mài
大麦
zuòchéng
做成
de
  

This so-called instant coffee on the original shape, only the smell of burning and no fragrance, the original is made of roasted barley.

3
ge
那个
màochōng
冒充
diànnǎo
电脑
wéixiū
维修
rényuán
人员
de
piànzi
骗子
  
,
lián
shǔbiāo
鼠标
dōu
huì
不会
yòng
  
,
suǒ
所以
dòngshǒu
动手
cāozuò
操作
jiù
chū
露出
le
yuánxíng
原形
  

The fraudster posing as a computer repairman, even the mouse will not use, so a hands-on operation revealed the original shape.