Correct

一百八十度大转弯

/ yī bǎi bā shí dù dà zhuǎn wān /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/一百八十度大转弯-Chinese-idioms-Cchatty-d7c878c2-0a65-4808-97b1-d87445d1af18-1612776113.jpg

Collocation

1
忽然一百八十度大转弯
2
来个一百八十度的大转弯
3
发生一百八十度大转弯
4
会有一百八十度大转弯

Definition

一百八十度大转弯:

Literally means:

180 degree turn

Actually means:

转弯, about-face; make a U-turn.

It figuratively means that one's attitude has a fundamental change, and is now contrary to his original view.

比喻态度发生了变化,与原来的相反。

Example

Used as object or predicate. It can be used with de inserted into the phrase. (作宾语、谓语,中间可插入“的”字)
1
Cóng
shénme
什么
dōu
guǎn
不管
dào
shénme
什么
dōu
yào
guǎn
  
,
jiā
大家
dōu
míngbái
明白
ba
爸爸
zài
zhè
jiàn
shìqing
事情
shàng
wèishénme
为什么
huì
bǎishí
一百八十
zhuǎnwān
转弯
  

From nothing to anything, no one understands why Dad turned 180 degrees in this matter.

2
Yuánlái
原来
zhīchí
支持
gǎi
改革
de
rén
zhōng
  
,
yǒuxiē
有些
rén
de
tàidu
态度
rán
忽然
bǎishí
一百八十
zhuǎnwān
转弯
  
,
shuō
zhèyàng
这样
gǎi
改革
shì
xiā
nào
胡闹
  

Some of the original supporters of reform suddenly turned 180 degrees, saying that such reform is nonsense.

3
qián
以前
duì
hěn
lěngdàn
冷淡
  
,
xiànzài
现在
shēng
提升
le
  
,
jiù
lái
bǎishí
一百八十
de
zhuǎnwān
转弯
  
,
lǎoshi
老是
tǎohǎo
讨好
  
,
zhēn
ràng
ěxīn
恶心
  

He used to be cold to me, and now that I'm up, I'm going to make a 180-degree turn, and he's always courting me, which makes me sick.