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n.效率,效能;实力,能力;[物]性能;功效 变形: 复数:efficiencies 双语释义:n.(名词)[U]效率,效能 result of work英英释义: efficiency[ i'fiʃənsi ]n.the ratio of the output to the input of any systemskillfulness in avoiding wasted time and effort"she did the work with great efficiency"