Correct

连根烂

/ lián gēn làn /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/连根烂-Chinese-idioms-Cchatty-a2cdf926-b19f-4298-9d8f-58ee2d118950-1612778294.jpg

Collocation

1
已经连根烂
2
要连根烂
3
全连根烂
4
就连根烂

Definition

连根烂

Literally means:

even the root is rotten

Actually means:

ruin everything

This phrase means the whole plant, including the root has rotten away. It metaphorically means something is thoroughly destroyed or one's hope is completely spoiled.

植物以及它的根都烂掉了。比喻事物彻底毁坏、损失或希望、理想彻底破灭。

Example

Used as predicate. (作谓语)
1
Yóu
由于
lànyòng
滥用
nóngyào
农药
  
,
sān
suàn
大蒜
quándōu
全都
liángēn
连根
làn
zài
  
,
sǔnshī
损失
wànqiān
一万五千
duō
yuán
  

Due to the abuse of pesticides, three acres of garlic all rotted in the ground, the loss of more than 15,000 yuan.

2
men
他们
bàn
gōngchǎng
工厂
shì
可是
wàiháng
外行
  
,
yàoshi
要是
chénggōng
成功
  
,
shíwàn
十万
kuài
qián
jiù
lián
gēn
làn
le
  

They run a factory but the outsider, if not successful, hundreds of thousands of dollars even rotten roots.

3
yóu
由于
jiēèrliánsān
接二连三
de
shībài
失败
  
,
xiànzài
现在
duì
zhènxīng
振兴
gōng
公司
de
wàng
希望
jīng
已经
liángēn
连根
làn
  

Because of a series of failures, Hsi's hopes of revitalizing the company are now in tatters.