invalidity
剑桥词典
invalidity noun [U] (NOT OFFICIAL)
the condition of not being legally or officially acceptable
无效，不合法
invalidity noun [U] (ILLNESS)
the condition of being too ill to work or care for yourself
病弱（而不能工作或照顾自己） 返回 invalidity
the condition of not being legally or officially acceptable
无效，不合法
the condition of being too ill to work or care for yourself
病弱（而不能工作或照顾自己） 返回 invalidity