1
deficiency in sth
常与in连用，表示在某方面存在不足。
The test revealed a deficiency in iron levels.
测试显示铁含量不足。
缺乏；不足；短缺
先理解核心含义，再看它在真实句子里的用法。
缺乏；不足；短缺
Lack or insufficiency; the state of being inadequate or incomplete.
The test revealed a deficiency in iron levels.
测试显示铁含量不足。
不足或不完整。
Inadequacy or incompleteness.
缺乏所需之物的状态
the state of needing something that is absent or unavailable
缺乏,尤指对健康必不可少的东西的不足。
An insufficiency, especially of something essential to health.
数量或数目不足
lack of an adequate quantity or number
A nutritional deficiency can lead to health problems.
营养缺乏会导致健康问题。
AI contextual example
The team's main deficiency is a lack of experience.
该团队的主要不足是缺乏经验。
AI contextual example
Vitamin D deficiency is common in winter.
冬季维生素D缺乏很常见。
AI contextual example
water is the critical deficiency in desert regions
水是沙漠地区最关键的短缺。
WordNet
常与in连用，表示在某方面存在不足。
The test revealed a deficiency in iron levels.
测试显示铁含量不足。
用of表示缺乏某物，强调匮乏对象。
A deficiency of vitamin C can cause scurvy.
维生素C缺乏会导致坏血病。
Not this
I am deficiency in vitamin C.
Use this
I am deficient in vitamin C.
名词'deficiency'不能作表语，应改用形容词'deficient'描述状态。
Not this
He has a deficiency for vitamin D.
Use this
He has a deficiency in vitamin D.
表示'在……方面缺乏'时，介词应用'in'而非'for'。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
维生素缺乏
Vitamin deficiency can lead to various health problems.
维生素缺乏会导致各种健康问题。
缺铁
Iron deficiency is a common cause of anemia.
缺铁是贫血的常见原因。
免疫缺陷
Patients with immune deficiency are more susceptible to infections.
免疫缺陷患者更容易受到感染。
营养缺乏
A balanced diet prevents nutritional deficiency.
均衡的饮食可预防营养缺乏。
缺乏症
Scurvy is a classic deficiency disease caused by lack of vitamin C.
坏血病是一种因缺乏维生素C引起的典型缺乏症。
睡眠不足
Chronic sleep deficiency can impair cognitive function.
长期睡眠不足会损害认知功能。
Use deficiency naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
对比'sufficient'（充足的），'de'表否定，deficiency即不充足、缺乏。
[object Object]
Words ending in -iciency share the same stress pattern and final syllable: /ɪˈfɪʃənsi/ (efficiency, proficiency, sufficiency). Be careful with lookalikes like frequency (first-syllable stress) or agency (first-syllable stress).
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.