infirm

身体上衰弱的

describes weakness or illness of the body

描述身体上的虚弱或疾病

精神上衰弱的

describes weakness or illness of the mind

描述心智上的虚弱或疾病

身体虚弱

describes the state of being weak or ill, especially through old age

描述因年老等原因而虚弱或生病的状态

变得虚弱

describes the process of growing weak or ill, often due to age

描述因年龄等原因而逐渐变得虚弱或生病的过程