He has been lacking in energy for some time.

他感到虚弱有段时间了。

youdao

What other word does he use to mean 'lacking in energy'?

请仔细听他用哪个词来表示“缺乏精力”。

youdao

What other word does he use to mean 'lacking in energy'?

请仔细听他用哪个词来表示“缺乏精力”。

youdao