Word · CEFR B1 · Frequency #2196
efficient
高效的；效率高的；有效率的
working well without wasting time, effort, or resources; making good, careful use of what is available; able to accomplish a purpose effectively
- 1.
Making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy.
高效利用资源的,不浪费的；尤指善于利用时间或精力的。
- 2.
being effective without wasting time or effort or expense
有效率地完成任务,不浪费时间、精力或费用
- 3.
Expressing the proportion of consumed energy that was successfully used in a process; the ratio of useful output to total input.
表示过程中有效利用的能量所占比例；有用输出与总输入之比。
- 4.
able to accomplish a purpose; functioning effectively; -G.B.Shaw
能够实现目的；有效运作
- 5.
Causing effects, producing results; bringing into being; initiating change (rare except in philosophical and legal expression efficient cause = causative factor or agent).
引起效果、产生结果；使存在；引发变化(罕见,除哲学和法律中的“动力因”外)。
能效高的；输出与输入比值高的；产生效果的；引发变化的；高效利用资源的,不浪费的；尤指善于利用时间或精力的。；有效率地完成任务,不浪费时间、精力或费用；表示过程中有效利用的能量所占比例；有用输出与总输入之比。
In use
The new manufacturing process is very efficient, saving both time and resources.
She is an efficient manager who always completes tasks ahead of schedule.
The efficient design of the appliance reduces electricity consumption by 30%.
an efficient production manager
efficient engines save gas
an efficient secretary
the efficient cause of the revolution
be efficient at (doing) sth
表示在某方面或做某事时效率高。
She is very efficient at organizing files.
Connections
Collocations
- highly efficient
- 高效率的
- The new machine is highly efficient.新机器效率很高。
- energy efficient
- 节能的
- We should buy energy-efficient appliances.我们应该买节能电器。
- cost efficient
- 成本效益高的
- This solution is more cost efficient.这个解决方案更具成本效益。
- efficient way
- 有效的方法
- There is a more efficient way to do it.有一种更有效的方法来做这件事。
- efficient use
- 有效利用
- Efficient use of resources is important.资源的有效利用很重要。
- efficient system
Learner notes
Memory Tip
efficient 发音类似'易飞升'（容易飞起来），寓意高效。
Context & Register
语域：中性；典型语境：工作、操作、系统；注意：通常用于描述方法、流程或人员能力，强调不浪费时间或精力。
Pronunciation & Spelling
The words sufficient, proficient, deficient, and coefficient rhyme with efficient (all end in /ˈfɪʃənt/). Efficiency shares the first three syllables but ends in /fɪʃənsi/, so it is a useful lookalike but not a rhyme.
High-value vocabulary
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
Usage priority
Collins 词频等级为 3，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.