lack; need; 缺乏
There's no lack of such person. 不乏其人。
be tired from a long walk; 走乏了
The entire force was exhausted. 人困马乏。
poor soil [land]; 乏地
poor 贫乏
weak [ineffective] talk; 乏话
a decrepit [broken-down] running dog; 乏走狗
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)