Correct

难兄难弟

/ nàn xiōng nàn dì /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/难兄难弟-Chinese-idioms-Cchatty-91cc7cbe-56ff-4e54-b9e8-9aaae0985df6-1612778387.jpg

Collocation

1
真是难兄难弟啊
2
一对难兄难弟

Definition

难兄难弟

Literally means:

fellow sufferers

Actually means:

people in the same boat

It refers to fellow sufferers or people in the same difficult situation.

指曾经共同受苦受难的人,或现在处在相同困难境地的人。

Example

Used as predicate or object. (作谓语、宾语)
1
men
我们
shì
nánxiōngnán
难兄难弟
  
,
jiā
大家
xiāng
互相
zhàogu
照顾
shì
yīnggāi
应该
de
  
,
qiānwàn
千万
yào
不要
shuō
zhèzhǒng
这种
qihuà
客气话
  

We are difficult brothers, we should take care of each other, do not say such polite words.

2
Yuánlái
原来
shī
失业
le
ā
  
,
kànlai
看来
men
我们
zhēnshi
真是
nánxiōngnán
难兄难弟
ā
  

So you also lost your job ah, it seems that we are really difficult brother ah.

3
Zhè
liǎng
jiā
gōngchǎng
工厂
xiànzài
现在
dōu
yīn
dào
gōngrén
工人
ér
chéngwéi
成为
duì
zāo
遭遇
gōngrén
工人
huāng
de
nánxiōngnán
难兄难弟
  

Both factories are now a pair of difficult brothers suffering from a "worker shortage" because they can't hire workers.

Related

难兄难弟