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.
WDF
efficiently
[ɪ'fɪʃntlɪ]
r6444
3533
305
279
1169
529
1251
ADV4251
238800
Spoken:
124781055
有效地(75%)，高效率地(25%)
adv.有效地；效率高地（efficient的副词形式）
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