maturity
noun [ U ] uk/məˈtʃʊə.rə.ti/ us/məˈtʊr.ə.t̬i/
(MENTAL DEVELOPMENT)
（心智）成熟
the quality of behaving mentally and emotionally like an adult
成熟阶段;完善的状态
a very advanced or developed form or state
(FULL GROWTH)
发育成熟，长成
the state of being completely grown physically
How long does it take for the chicks to grow to maturity? 小鸡多长时间才能长大？
(FINANCE)
finance & economics specialized（保险合同或投资）到期，开始有回报
the time when an insurance agreement or investment becomes ready to be paid
The investment reaches maturity after ten years. 这项投资10年后开始获得回报。