deficiency

1. N-VAR Deficiencyin something, especially something that your body needs, is not having enough of it. 缺乏; 不足

They did blood tests on him for signs of vitamin deficiency. 他們給他做了血檢看是否有缺乏維生素的跡象。

2. N-VAR A deficiency that someone or something has is a weakness or imperfection in them. 缺點(diǎn); 缺陷[正式]

The most serious deficiency in NATO's air defence is the lack of an identification system to distinguish friend from foe. 北約防空的最大缺陷就是缺乏能夠辨認(rèn)敵友的識(shí)別系統(tǒng)。