maturity/məˈtʊr.ə.t̬i/名词(心智)成熟发育成熟,长成How long does it take for the chicks to grow to maturity?小鸡多长时间才能长大?(保险合同或投资)到期,开始有回报The investment reaches maturity after ten years.这项投资10年后开始获得回报。想跟读,去练习