虚弱不堪地

例句：

1. 1. The oldman was weak from lack of exercise.
   老人由于缺乏锻炼而身体虚弱。
2. 2. The babyis too weak to walk yet.
   这个婴儿还太弱，不能走路。
3. 3. She feltweak after the long flight.
   长途飞行后她感到虚弱。