虚弱

In a sentence

• 生病后我的身体非常虚弱。

  After being sick, my body was extremely weak.

  In this sentence, '虚弱' is used to describe physical weakness due to an illness.

• 长期缺乏锻炼让他的体质变得虚弱。

  Lack of exercise for a prolonged period made his physique weak.

  Here, '虚弱' refers to the weakening of physical condition due to inactivity.

• 她的声音听起来虚弱无力，仿佛马上就要晕倒了。

  Her voice sounded faint and weak, as if she were about to faint.

  The word '虚弱' is applied here to depict a weak and fragile state, emphasizing the lack of strength or vitality in her voice.