HSK V7-9
Correct

不约而同

/ bùyuēértóng / 
Strokes

Definition

to agree by chance (idiom); taking the same action without prior consultation

Example

Definition
act in concert without prior arrangement; take the same view or action without previous consultation; happen to coincide
1
Cūnmín
村民
men
们
bùyuēértóng
不约而同
dì
地
xuǎnjǔ
选举
tā
他
dāng
当
cūnzhǎng
村长
  
。

As if by prior arrangement, the villagers unanimously elected him to be the village head.

2
Tāmen
他们
bùyuēértóng
不约而同
dì
地
tíchū
提出
le
了
tóngyàng
同样
de
的
jiějué
解决
bànfǎ
办法
  
。

They happened to come up with the same solution.