1
the inefficiency of sth
这一结构用来明确指出低效的主体，后面接名词或名词短语。
The inefficiency of the old equipment raised operating costs.
旧设备的低效率提高了运营成本。
无效率；效率低下
先理解核心含义，再看它在真实句子里的用法。
无效率；效率低下
unskillfulness resulting from a lack of efficiency
The inefficiency of the old equipment raised operating costs.
旧设备的低效率提高了运营成本。
缺乏效率或效能。
Lack of efficiency or effectiveness.
The old factory was closed because of its inefficiency.
那家老工厂因其效率低下而关闭。
The new manager promised to reduce inefficiency in the office.
新经理承诺减少办公室里的效率低下现象。
Too many unnecessary steps create inefficiency in our daily work.
太多不必要的步骤使我们的日常工作效率低下。
这一结构用来明确指出低效的主体，后面接名词或名词短语。
The inefficiency of the old equipment raised operating costs.
旧设备的低效率提高了运营成本。
用于说明某个领域或流程中存在低效现象，inefficiency 在此处通常作不可数名词。
There is inefficiency in the way the office is organized.
这个办公室的组织方式存在效率低下的问题。
inefficiencies 是复数形式，常用来指具体可指出的多个低效问题。
The consultant reported inefficiencies in the ordering system.
顾问报告了订购系统中的多处低效问题。
Not this
The old machine is inefficiency.
Use this
The old machine is inefficient.
inefficiency 是名词，意为“无效率；效率低下”；在系动词 is 后面作表语应该用形容词 inefficient（低效的）。
Not this
There are many inefficiency in the process.
Use this
There are many inefficiencies in the process.
当表示具体的“低效之处”时，inefficiency 是可数名词，复数形式为 inefficiencies；many 后必须接复数可数名词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
官僚体制的低效
The project was delayed by bureaucratic inefficiency.
这个项目因官僚体制的低效而被拖延。
政府效率低下
Citizens are increasingly angry about government inefficiency.
公民对政府效率低下越来越愤怒。
浪费与低效
The report revealed widespread waste and inefficiency.
报告揭露了普遍的浪费与低效。
减少效率低下的情况
Automation can help reduce inefficiency in factories.
自动化有助于减少工厂中效率低下的情况。
经济效率低下
Economists argue that subsidies create economic inefficiency.
经济学家认为补贴会造成经济效率低下。
效率低下的典型象征；体现极大浪费和低效的事物
The old filing system is a monument to inefficiency.
这套旧的归档系统是效率低下的典型象征。
效率低下的代名词
For years, the agency was a byword for inefficiency.
多年来，该机构一直是效率低下的代名词。
效率低下的典型代表
This paperwork process is a poster child for inefficiency.
这套文书流程是效率低下的典型代表。
Use inefficiency naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记法：in（不）+ efficiency（效率）→ 没效率。联想：插头没插进(in)机器，机器空转，效率低下。
语域：neutral 常见场景：business operations、government administration、industrial processes 该词属于中性偏正式的表达，通常用于讨论工作流程、组织管理或政策执行中的效率不足；日常口语中也可能更常说“效率不高”或“浪费”等说法。
Words with the -ficiency chunk (efficiency, deficiency, proficiency, sufficiency) all rhyme with inefficiency: they share the stressed /ˈfɪʃənsi/ ending. Beware lookalikes like discrepancy and frequency: despite the similar -ency spelling, they end in /ənsi/, not /ʃənsi/, so they do not rhyme with inefficiency.
Dictionary facts from ECDICT, WIKTIONARY.