Correct

五百年前是一家

/ wǔ bǎi nián qián shì yī jiā /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/五百年前是一家-Chinese-idioms-Cchatty-f99a4090-0d86-45c2-94c7-c1110e6ee640-1612776338.jpg

Collocation

1
看在五百年前是一家的份上
2
原来五百年前是一家
3
可谓五百年前是一家
4
我们五百年前是一家

Definition

五百年前是一家:

Literally means:

belong to the same family 500 years ago

Actually means:

It refers to people who share the same family name.

It is used to indicate that two people may be descendants of the same ancestors, and they are close to each other.

指姓氏相同的人。

用来说明彼此都是同一个祖先的后代,关系亲近。

Example

Used as predicate, object or attributive. (作谓语、宾语、定语)
1
Zài
zhōngguó
中国
  
,
liǎng
rén
chū
初次
jiànmiàn
见面
shí
  
,
guǒ
如果
xiàn
发现
men
他们
de
zài
zhōng
xìng
xiāngtóng
相同
  
,
jiù
huì
rènwéi
认为
彼此
bǎi
五百
nián
qián
shì
jiā
  
,
juéde
觉得
bié
特别
qīnqiè
亲切
  

In China, when two people meet for the first time, if they find out that they have the same middle name, they will think that they were a family 500 years ago, and feel particularly cordial.

2
men
他们
liǎng
rén
dōu
xìng
lín
  
,
wèi
可谓
bǎi
五百
nián
qián
shì
jiā
  

Both of them, surnamed Lin, were a family five hundred years ago.

3
Kàn
zài
bǎi
五百
nián
qián
shì
jiā
de
fèn
shàng
  
,
shì
huì
不会
wéinán
为难
de
  

I wouldn't have embarrassed him if it had been a family five hundred years ago.