Word · Frequency #2306
efficiency
效率；效能
核心释义
the quality of using resources, time, or effort effectively without waste
- 1.
资源用于预期目的的程度。
The extent to which a resource is used for the intended purpose.
- 2.
任何系统输出与输入之比
the ratio of the output to the input of any system
- 3.
避免浪费时间和精力的技巧
skillfulness in avoiding wasted time and effort
效率；资源用于预期目的的程度。；任何系统输出与输入之比；避免浪费时间和精力的技巧；效能
用法In use
The new software improves the efficiency of our daily work.
用法提示：efficiency 作名词，表示工作效率。
We need to measure the efficiency of this machine.
用法提示：efficiency 为名词，指系统输出与输入之比。
Her efficiency at handling emails saves the team a lot of time.
用法提示：efficiency 作名词，表示避免浪费时间的技巧。
she did the work with great efficiency
efficiency of [noun]
常用于描述某事物的效率。
The efficiency of the new engine is impressive.
新引擎的效率令人印象深刻。
efficiency in [doing sth]
相关词与表达Connections
搭配Collocations
- energy efficiency
- 能源效率
- The new building is designed to maximize energy efficiency.这座新建筑旨在最大限度地提高能源效率。
- improve efficiency
- 提高效率
- We need to improve efficiency in our production line.我们需要提高生产线的效率。
- high efficiency
- 高效率
- This machine operates with high efficiency.这台机器以高效率运行。
- operational efficiency
- 运营效率
- The company is focused on increasing operational efficiency.公司专注于提高运营效率。
学习提示Learner notes
记忆技巧Memory Tip
记忆法：efficiency 中 'e' 代表 energy（能量），'fficiency' 类似 sufficiency（充足），能量充足则效率高。
语境与语域Context & Register
[object Object]
语法说明Grammar Note
泛指“效率”时通常不可数；efficiencies 强调不同类型的效率或具体指标。
发音与拼写Pronunciation & Spelling
The words deficiency, proficiency, and sufficiency rhyme with efficiency (stress on second syllable with /ɪ/). Frequency (stressed vowel /iː/), tendency (/ɛ/), and consistency (/ɪ/ but different stress pattern) are spelling lookalikes with different sounds.
用法优先级Usage priority
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.