| 例句 |
efficientadjective producing or capable of producing a desired resultthat manual lawn mower is not a very efficient tool for doing a huge yard effective, effectual, efficacious, fruitful, operative, potent, productive hyperefficient, ultraefficientadequate, capable, competentaccomplished, adept, consummate, experienced, expert, masterly, practiced(also practised), proficient, skilled, skillful, versed, veteran, virtuosocogent, convincing, killer, sound, striking, telling, validactive, dynamicuseful, workingapplicable, feasible, functional, practicable, practical, realizable, usable(also useable), workable fruitless, ineffective, ineffectual, inefficient, inoperative, unfruitful, unproductive, useless counterproductiveincapable, incompetent, inexperienced, inexpert, unqualified, unseasoned, unskilled, unskillfulabortive, bootless, futile, vainempty, hollow, idle, pointless, unavailing, unprofitable, unsuccessfulinoperative, worthless effective, effectual, efficient, efficacious mean producing or capable of producing a result.effective stresses the actual production of or the power to produce an effect.an effective rebuttal effectual suggests the accomplishment of a desired result especially as viewed after the fact.the measures to stop the pilfering proved effectual efficient suggests an acting or a potential for action or use in such a way as to avoid loss or waste of energy in effecting, producing, or functioning.an efficient small car efficacious suggests possession of a special quality or virtue that gives effective power.a detergent that is efficacious in removing grease in the 14th century |