deficient

英 [dɪˈfɪʃ.ənt]      美 [dɪˈfɪʃ.ənt]
  • adj. 不足的;有缺陷的;不充分的
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将“deficient”分解为“de”和“ficient”,其中“de”表示“不”,“ficient”表示“足”,合起来就是“不充足”或“缺乏”。可以这样记忆:想象某人缺少某些能力或东西,因此显得“不充足”。

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deficient
deficient: [16] Deficient was acquired from Latin dēficient-, the present participial stem of dēficere ‘undo, fail, leave, be lacking’, a compound verb formed from the prefix - ‘away’ and facere ‘do, make’ (a parallel formation lies behind English defeat). The past participial stem of the Latin verb, dēfect-, produced English defect [15], while its third person present singular dēficit was borrowed by English as deficit.
=> defeat, defect, deficit
deficient (adj.)
1580s, from Latin deficientem (nominative deficiens), present participle of deficere "to desert, revolt, fail," from de- "down, away" (see de-) + facere "to do, perform" (see factitious).
1. a diet that is deficient in vitamin A
缺乏维生素A的饮食
2. A diet deficient in vitamin D may cause the disease rickets.
缺少维生素D的饮食可能导致软骨病.
3. An educational system which fails to teach basic arithmetic is seriously deficient.
一个沒教基础算术知识的教育体制是有严重缺陷的.
4. The milk is deficient in fat.
这牛奶脂肪含量不足.
5. The crops are suffering from deficient rain.
庄稼因雨量不足而遭受损害.

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