The old woman was suffering from age and infirmity.那个老妇人受年老体弱之苦。In recent years she has had to reduce her schedule because of age and infirmity.近几年，因为上了年纪，身体又差，她不得不减少了日程安排。In spite of his age and infirmity, he still writes plays and novels.年迈体衰的他仍然坚持创作剧本和小说。