n.体弱( infirmity的名词复数 )，虚弱，疾病，病症...

Older people often try to ignore their infirmities.年纪大的人常常试图忽视自己年迈体衰的事实。He had no patience with the infirmities of human nature.他对人性的软弱毫无耐心.Deafness and failing eyesight are among the infirmities of old age.耳聋眼花是年老体衰的现象....

infirmities的音标：...