ㄓㄨㄤˋㄋㄧㄢˊzhuàngnián

壮年
  1. 正當強壯有力年齡段 壯年」、壯年」。

lit. robust years, prime of life, summer, able-bodied (fit for military service)​, mature (talent, garden etc)​
maturité, force de l'âge