[ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]效率高的；效能高的 If something or someone is efficient, they are able to do tasks successfully, without wasting time or energy.
With today's more efficient contraception women can plan their families and careers.
如今有了更加有效的避孕方法，女性便可以规划她们的家庭和事业。
efficiently
I work very efficiently and am decisive, and accurate in my judgement.
我工作非常有效率，处事果断，而且判断准确。
Oxford
ef·fi·cient★/ɪˈfɪʃnt; NAmEɪˈfɪʃnt/adjectivedoing sth well and thoroughly with no waste of time, money, or energy 效率高的；有功效的◆an efficient secretary效率高的秘书◆efficient heating equipment效能好的供暖设备◆the efficient use of energy能源的有效利用◆As we get older, our bodies become less efficient at burning up calories.随着一天天衰老，我们的身体消耗热量的功能逐渐减弱。◆fuel-efficient cars (= that do not use much fuel)节能汽车OPP
inefficient
▶ef·fi·cient·ly★/ɪˈfɪʃntli; NAmEɪˈfɪʃntli/adverb◆a very efficiently organized event组织效率极高的活动ef·fi·cient/ɪˈfɪʃnt; NAmEɪˈfɪʃnt/ef·fi·cient·ly/ɪˈfɪʃntli; NAmEɪˈfɪʃntli/
LDC
efficientef‧fi‧cient /ɪˈfɪʃənt/ ●●●S3W3 adjective
Word Origin
Examples
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Collocations
if someone or something is efficient, they work well without wasting time, money, or energyOPP inefficient: a very efficient secretary an efficient use of land Lighting is now more energy efficient.—efficiently adverbCOLLOCATIONSadverbsextremely/highly efficient· The factory is modern and highly efficient.efficient + NOUNan efficient way· Email is an efficient way of contacting a large number of people.an efficient method· The railways used to provide a cheap efficient method of travel.an efficient means· The tram is a very efficient means of transport.an efficient system· We need a more efficient system for collecting money.an efficient service· We aim to provide our clients with an efficient and friendly service.the efficient use of something· We must work towards the more efficient use of all natural resources.the efficient operation of something· The law must protect investors without interfering with the efficient operation of the market.NOUN + efficientenergy/fuel efficient (=not wasting any fuel or energy)· an energy efficient heating systemcost efficient (=costing or spending as little as possible)· The larger a firm becomes the more cost efficient it can become.
open
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