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TOEFL IELTS BNC: 2196 COCA: 2998

efficient

Word family 
ef·fi·cient /ɪˈfɪʃənt/ ●●● S3 W3 adjectiveadj  
EFFICIENTif someone or something is efficient, they work well without wasting time, money, or energy 有效率的；高效能的 OPP inefficient
 a very efficient secretary
效率高的秘书
 an efficient use of land
土地的有效使用
 Lighting is now more energy efficient.
如今的照明设备更加节能。
—efficiently adverbadv
n COLLOCATIONS
adverbs
extremely/highly efficient
The factory is modern and highly efficient.
efficient + NOUN
an 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 + efficient
energy/fuel efficient (=not wasting any fuel or energy)
an energy efficient heating system
cost efficient (=costing or spending as little as possible)
The larger a firm becomes the more cost efficient it can become.
Examples from the Corpus
efficient• Modern houses are much more energy efficient• Organisationally, the working of both payroll and personnel records has been very useful in providing an efficient administrative service.• If you are already using Ventura then these changes will all make your work more efficient and easy.• This is the most efficient and economical washing machine on the market.• Service at the restaurant is efficient and friendly.• It is so efficient and saves vast amounts of time and money.• Or the child may at first become even less efficient and then show some improvement.• Government rules now require car companies to design and produce cars with increasingly efficient engines.• They point out that bottom-up statistical methods are efficient from a computational point of view, but exhibit poor error correcting capabilities.• an energy efficient heating system• The passport office seems very efficient - I got a new passport in just 48 hours.• Thus, an efficient managerial labour market would be enough.• We need more efficient methods of transporting goods.• For a successful business, friendly and efficient staff are essential.• My new computer's much faster and more efficient than the old one was.• In its draft version the report declares that market forces alone will not ensure more efficient use of energy.• The doctor was cheerful and efficient, which immediately made me feel more relaxed.
energy efficient• An ecological building would also be moderately more energy efficient.• Automatic defrost is most desirable since it eliminates human error and is energy efficient.• Today's forward thinking manufacturers are already offering systems which include self-washing filter units and energy efficient airflow patterns.• Lighting is now more energy efficient and the heat that it produces can be used to heat stores in winter.• And therein lies the key criticism of Mr Lamont's move towards an energy efficient Britain.• Others would like their homes to be energy efficient but wanted the features to be incorporated into the basic house price.• The work will include cavity wall insulation, roof insulation, double glazing and installation of energy efficient heating systems.• Why not spend some of that money on improving public transport schemes - more energy efficient, safer and less polluting?
From Longman Business Dictionary
efficientef·fi·cient /ɪˈfɪʃənt/ adjectiveadjMANUFACTURING
1producing goods using as little time, money etc as possible
The United States has developed the most efficient methods of food production and distribution.
Is this really an efficient use of resources?
2cost-efficient, fuel-efficient etc costing as little as possible, using as little fuel as possible etc
energy-efficient light bulbs
3doing a job quickly and well
a very efficient young secretary
a fast and efficient transport system
—efficiently adverbadv
an efficiently run restaurant
equipment that distributes electrical power more efficiently
Origin efficient
(1300-1400) Latin present participle of efficere; → EFFECT1
ef·fi·cient adjectiveadj →n COLLOCATIONS1
LDOCE Online
Chinese
Syllable
Corpus
TOEFL IELTS BNC: 2196 COCA: 2998
efficient

adjective

VERBS | ADVERB | PREPOSITION VERBS➤appear, be, look, seem, sound顯得效率高；效率高；看上去效率高；好像效率高；聽起來效率高▸➤become變得效率高▸➤make sth使⋯效率高ADVERB➤extremely, fairly, very, etc.極其／相當／非常有效率▸➤highly, incredibly, remarkably極為高效；明顯高效▸➤perfectly效率最高◇We already have a perfectly efficient system－why change it?我們已經有了最有效率的系統， 為什麼要改變？➤brutally, ruthlessly非常／絕對高效的◇He was ruthlessly efficient in acquiring estates.他在收購房地產方面雷厲風行。➤increasingly效率越來越高▸➤reasonably, relatively效率還算高／相對高➤economically, environmentally, technically經濟／機械／技術效率高PREPOSITION➤at在⋯方面效率高◇Their equipment was not as efficient at finding gold as today's machinery.在探尋金礦方面，他們的設備不如現在的機器高效。➤in在⋯方面效率高◇The heating system is very efficient in its use of fuel.供暖系統能高效節省燃料。
TOEFL IELTS BNC: 2196 COCA: 2998
efficient

adjective

efficient ♦︎ systematic ♦︎ orderly ♦︎ tidy ♦︎ businesslike ♦︎ methodical ♦︎ organized ♦︎ neatThese words all describe sb/sth that is able to do or does sth well, thoroughly or according to a system. 这些词均表示有效率的、有条理的或系统的。PATTERNS AND COLLOCATIONS 句型和搭配◆efficient / systematic / businesslike / methodical / organized in sth◆in a systematic / an orderly / a businesslike / a methodical / an organized fashion◆an efficient / a systematic / an orderly / a businesslike / a methodical / an organized approach / way◆relatively efficient / systematic / orderly / organized◆fairly efficient / systematic / orderly / tidy◆quite efficient / businesslike / methodical◆extremely efficient / organized / neat◆highly efficient / systematic / organized■ efficient doing sth well and thoroughly with no waste of time, money or energy 有效率的；有能力的◆It's an incredibly efficient system.这一系统效率极高。◆The more efficient firms have lower costs.效率较高的公司成本较低。◆More efficient use of energy resources is vital.更加有效地利用能源非常重要。◆Our bodies become less efficient at burning off calories.我们身体消耗热量的效率降低了。◆She was helpful, quietly efficient and tactful.她乐于助人，话不多，但能干且老练。◆Which software is the most efficient at processing the data?哪个软件处理数据的效率最高？OPP inefficient ⇨ ineffective ▸ efficiently

adverb

◆They began to work harder and more efficiently.他们开始更加努力地工作，工作效率提高了。OPP inefficiently ⇨ ineffective ■ systematic ˌsɪstəˈmætɪk done according to a system or plan, in a thorough, efficient or determined way 系统的；有条理的；有计划有步骤的◆No systematic analysis has ever been carried out in this area.还未曾在这个领域做过系统分析。◆This was a systematic attempt to infiltrate a democratic organization.这是试图潜入一民主组织的有计划有步骤的行动。OPP unsystematic ⇨ random   see also system ⇨ way 2 ▸ systematically ˌsɪstəˈmætɪkli

adverb

◆The topic has never been systematically studied.这一课题未曾有人系统地研究过。■ orderly doing things in a careful and logical way 有秩序的；有条理的◆She had led a calm and orderly life.她过去一直过着平静有序的生活。◆Public policy changes can be made in an orderly and rational manner.可以按部就班地对公共政策作出合理的改变。◆It was a civilized and orderly society.那是个文明有序的社会。 OPP disorderly ⇨ wild 1 ■ tidy (especially BrE) keeping things ordered and arranged in the right place, or liking to keep things like this 整齐的；井然有序的；讲究条理的◆I'm not a very tidy person.我这人不太讲究整洁。◆Even young children can be taught tidy habits.即使是小孩子也能培养出爱整齐的习惯。◆He is obsessively tidy.他整洁得要命。 OPP untidy ⇨ random   see also tidy ⇨ neat ■ businesslike ˈbɪznəslaɪk (of a person) working in an efficient way, not wasting time or thinking about personal matters （人）效率高的，井然有序的，工作认真而有条理的◆Wearing the suit made him feel more businesslike.穿上套装让他觉得自己更干练了。◆She adopted a brisk, businesslike tone.她用了一种公事公办的口吻，说话干脆利落。■ methodical məˈθɒdɪkl; NAmE məˈθɑːdɪkldoing things or done in a careful and logical way 有条理的；有条不紊的◆He was slow, methodical and reliable.他做事不慌不忙，有条不紊，非常可靠。◆Police carried out a methodical search of the premises.警方仔细地搜查了这个营业场所。▸ methodically məˈθɒdkli

adverb

◆The investigation was proceeding slowly but methodically.调查正缓慢而有序地进行。■ organized (BrE also organised) (of a person) able to plan your life and work well and in an efficient way （人）有条理的，有效率的◆The chairman is one of the most organized people I know.这位主席是我所认识的最有条理的人之一。◆Isn't it time you started to get organized?你该提高一下效率了吧？OPP disorganized ⇨ random ■ neat (of a person) liking to keep things in order; careful about your appearance （人）有条理的，爱整洁的◆She was a very efficient, neat woman.她是个能干利落的女子。◆The children are always neat and tidy.孩子们总是干干净净，整整齐齐的。◆By nature he was clean and neat.他生性干净整洁。ⓘ In American English neat can also be used for things and places. 在美式英语中，neat也可用来形容事物和场所◆ (NAmE) Each resident is expected to keep their room neat.房客应保持房间整洁。   see also neat ⇨ neat
TOEFL IELTS BNC: 2196 COCA: 2998
efficient
Useful and effective and working correctly: useful, efficient, effective...
Words used to describe someone who works hard: efficient, productive, committed...

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