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inadequacy of ...
表示某事物存在不足。
The report pointed out the inadequacy of the current system.
报告指出了当前系统的不足之处。
不充分；不足
先理解核心含义，再看它在真实句子里的用法。
不充分；不足
The state of being inadequate; not being enough or good enough.
The report pointed out the inadequacy of the current system.
报告指出了当前系统的不足之处。
不足,不充分
The state of being inadequate.
所需材料短缺
A shortage of required material.
缺乏能力或技能
A lack of competence or ability.
He constantly feels a sense of inadequacy at work.
他经常在工作中感到一种不足感。
The inadequacy of the public transportation system causes daily delays.
公共交通系统的不充分导致每日延误。
The report highlighted several inadequacies in the current policy.
报告指出了当前政策的几处不足。
表示某事物存在不足。
The report pointed out the inadequacy of the current system.
报告指出了当前系统的不足之处。
There is a fundamental inadequacy in the theory.
该理论存在根本性的不足。
常用搭配，表示一种心理感受。
Many students experience a sense of inadequacy when faced with difficult exams.
许多学生面对困难考试时会有能力不足的感觉。
Not this
There is an inadequate in the system.
Use this
There is an inadequacy in the system.
中文学习者常混淆形容词 'inadequate' 和名词 'inadequacy'。表达'不足之处'应使用名词形式，而非形容词。
Not this
His inadequacy to complete the project caused delays.
Use this
His inadequacy in completing the project caused delays.
表示'在某方面的不足'时，介词应用 in 加动名词，而非不定式。'inadequacy to do' 不符合英语固定搭配。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
不足感
He often struggles with feelings of inadequacy at work.
他经常在工作中与不足感作斗争。
不充分感
The exam results gave her a strong sense of inadequacy.
考试成绩让她产生了强烈的不充分感。
……的不足
The inadequacy of the current system is obvious.
当前系统的不足是显而易见的。
财政不足
Financial inadequacy forced the company to downsize.
财政不足迫使公司裁员。
结构缺陷
The bridge collapsed due to structural inadequacy.
桥梁因结构缺陷而倒塌。
在……方面的不足
There is an inadequacy in the training program.
培训项目存在不足。
Use inadequacy naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
in-（不）+ adequate（足够的）+ -cy（名词后缀）→ 不足、不充分
[object Object]
常用复数形式表示多种不足
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.