| 单词 | deficiency |
| 释义 | deficiency n. (pl. -ies) 1. the state or condition of being deficient. 2. (usu. foll. by of) a lack or shortage. 3. a thing lacking. 4. the amount by which a thing, esp. revenue, falls short. Phrases and idioms deficiency disease a disease caused by the lack of some essential or important element in the diet. |
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