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TOEFL BNC: 2306 COCA: 3047
efficiencynoun [ U ]uk/ɪˈfɪʃ.ən.si/ us/ɪˈfɪʃ.ən.si/

B2 the good use of time and energy in a way that does not waste any效率；效能；功效

What is so impressive about their society is the efficiency of the public services.他们的社会给人留下最深刻印象的是其高效率的公共服务。
energy efficiency能源使用效率

specialized physics the difference between the amount of energy that is put into a machine in the form of fuel, effort, etc. and the amount that comes out of it in the form of movement（机器的）功率

More examples

She got through her work with speed and efficiency.

Streamlining cars increases their fuel efficiency.

Ships from eight navies will be taking part in an exercise in the Pacific to improve their efficiency in combat.

He's a stickler for efficiency.

Sweden has shown the way forward on energy efficiency.

TOEFL BNC: 2306 COCA: 3047
efficiency

noun

ADJECTIVE | VERB + EFFICIENCY | EFFICIENCY + NOUN | PREPOSITION ADJECTIVE➤ruthless決不放鬆的效率▸➤great, high高效◇attempts to achieve greater efficiency in the production process在生產過程中達到較高效率的努力➤improved, increased提高的效率➤increasing不斷提升的效率▸➤maximum, peak (especially NAmE) 最大效率；最高成效◇The optimum design allows bartenders to work at peak efficiency.最佳的設計使酒吧服務員的工作效率達到最高。➤low低效率➤reduced降低的效率➤overall整體效率➤relative相對效率▸➤cost成本效率▸➤energy, fuel, thermal能量效率；燃料效率；熱效率▸➤mental, physical腦力勞動／體力勞動效率▸➤administrative, business, economic, industrial, management, mechanical, operational, organizational, production, technical行政／商業／經濟／工業／管理／機械／運營／組織／生產／技術效率VERB + EFFICIENCY➤achieve達到高效率➤maintain保持高效率➤demonstrate, show展示／顯示高效➤bring, create, deliver, offer, provide帶來高效率；創造高效率◇The Internet's promise to bring more efficiency to the distribution chain is still materializing.通過因特網來提高經銷鏈效率的這一前景還在繼續顯現出來。➤boost, enhance, gain, improve, increase, promote提高效率；增強效率➤maximize使效率最大化▸➤decrease, reduce降低效率➤lose喪失效率➤assess, calculate, determine, estimate, evaluate, examine, measure, test評估／計算／決定／預估／評價／檢驗／度量／測試效率EFFICIENCY + NOUN➤drive, measures效率動力；提高效率的措施◇New procedures had been introduced as part of an efficiency drive.已引入新的方法作為提高效率舉措的一部份。➤benefits, gains, improvements, increases, savings效率增益／提高／改善／提升／節約◇the efficiency gains resulting from improved technology改善技術帶來的效率提高➤losses效率虧損➤levels, standards效率水平／標準◇We have failed to improve fuel efficiency standards.我們試圖提升燃料效能，結果失敗了。➤rating, score效率評級／分值➤expert (especially NAmE) 效率專家PREPOSITION➤with efficiency有⋯的效率◇The uprising was put down with ruthless efficiency.起義被迅速鎮壓下去了。➤efficiency in在⋯方面的效率◇greater efficiency in energy use能源使用方面的更高效率
TOEFL BNC: 2306 COCA: 3047
efficiency

noun

efficiency ♦︎ order ♦︎ coherence ♦︎ organization ♦︎ structure ♦︎ methodThese are all words for the quality of being organized and working well. 这些词均表示条理、效率。PATTERNS AND COLLOCATIONS 句型和搭配◆efficiency / coherence / method in sth◆great efficiency / coherence◆to bring / give order / coherence / structure to sth◆to have order / coherence / organization / structure◆to impose order / coherence / structure on sth◆to achieve efficiency / coherence◆to create order / coherence◆to lack order / coherence / organization / structure◆a lack of order / coherence / organization / structure■ efficiency ɪˈfɪʃnsi [uncountable] the quality of doing sth well with no waste of time or money 效率；效能；功效◆The new computer system will cut costs and increase efficiency.这一新的电脑系统可以降低成本，提高效率。◆New standards of energy efficiency (= not wasting energy) are being introduced.新的能源效率标准即将出台。OPP inefficiency ⇨ ineffective ■ order [uncountable] the state of being well organized or neatly arranged 条理◆Get your ideas into some sort of order before you begin to write.落笔之前，先要理清思路。◆She always liked creating order out of chaos.她总是喜欢让无序变得有序。◆The house had been kept in good order.房子保持得井井有条。◆I felt it was time to put my life in order.我觉得到了该好好安排我自己生活的时候了。OPP disorder ⇨ mess 1 , chaos ⇨ chaos   see also ordered , orderly ⇨ neat ■ coherence kəʊˈhɪərəns; NAmE koʊˈhɪrəns [uncountable] (formal) the situation in which all the parts of sth fit or work well together 连贯性；条理性◆Some of the points you make are good, but the essay as a whole lacks coherence.你提出的一些论点很好，但从整体上说文章不够连贯。◆The party tried to find some kind of ideological coherence.该党试图在意识形态上达成某种一致。  see also coherent ⇨ rational ■ organization (BrE also organisation) [uncountable] the quality of being arranged in a neat, careful or logical way 条理；系统性◆She's highly intelligent but her work lacks organization.她聪明绝顶，但工作缺乏条理。◆As a manager he's obsessed with organization.作为一名经理，他极为信奉系统性。NOTE 辨析 Order or organization? Order is a state that can be created or that sth can be put into; organization is a quality that sth either has or lacks. * order是一种状态，可以作create或put into的宾语；organization是一种特质，作have或lack的宾语◆Get your ideas into some sort of organization. ◆creating organization out of chaos ■ structure [uncountable, countable] the state of being well organized or planned with all the parts linked together 精心组织；系统安排◆In terms of structure the novel has several flaws.就组织结构而言，这部小说有几处瑕疵。◆Children need structure in their lives.儿童的生活需要有周密的安排。  see also structure ⇨ structure noun ■ method [uncountable] the quality of being well planned and well organized 条理；有条不紊◆We have to apply some method to this investigation.做这项调查，我们必须要有条理。ⓘ Method is used especially to talk about a way of doing a task or solving a problem. * method尤指做事或解决问题的有条理的方法。
TOEFL BNC: 2306 COCA: 3047
efficiency
Usefulness and efficiency: usefulness, efficiency, effectiveness...

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