n.缺乏( deficiency的名词复数 )；不足；缺点；缺陷 双语释义：n.(名词)[U][C]缺乏,不足,短缺 the quality of being deficient; lack英英释义： deficiencyn.the state of needing something that is absent or unavailable"water is the critical deficiency in desert regions"同义词：lackwantlack of an adequat