Correct

平辈

/ píngbèi / 
Strokes

Definition

of the same generation

Example

As a Noun

persons of the same generation; peers

1
Tā
他
bùdà
不大
yú
与
píngbèi
平辈
rén
人
jiāowǎng
交往
  
。

He doesn't spend much time with his peers.

2
Yú
与
píngbèi
平辈
jiāowǎng
交往

consort with one's equals; mix with one's peer group