Correct
壮年
/ zhuàngnián /
Strokes
Definition
lit. robust years/prime of life/summer/able-bodied (fit for military service)/mature (talent, garden etc)
Example
As a Noun
being in one's thirties or forties
1
Zhuàngnián
壮年
láolì
劳力
able-bodied labourer
As a Noun
prime of life; meridian of life
2
Zhuàngnián
壮年
shíqī
时期
prime of life