lack的形容词缺乏的
lacking adj. 缺乏的，不足的；
Shes not usually lacking in confidence.
她平时并不缺乏自信心。
Why was military intelligence so lacking?
为什么军事情报如此缺乏？
My skin feels tight and lacking in moisture.
我的皮肤感觉紧巴巴的，缺乏水分。
I feel there is something lacking in my life.
我觉得我的生活中缺少点什么。
The book is completely lacking in originality.
这部书完全没有创意。
She felt nervous, increasingly lacking in confidence about herself.
她感到紧张，对自己越来越缺乏信心。