n.虛弱；病身；疾病；弱點(diǎn)
Infirmity often comes with old age. 虛弱常隨年老而來(lái)。
The old woman was suffering from age and infirmity. 那個(gè)老婦人受年老體弱之苦。
Having a bad temper is his worst infirmity. 壞脾氣是他最大的弱點(diǎn)。
