efficiency i'fiʃәnsi
释义
n. 效率, 效能, 功效
[医] 效率, 效力
英文释义
n. the ratio of the output to the input of any system
n. skillfulness in avoiding wasted time and effort
词形变化
复数: efficiencies
BNC词频排名: 2,306 | 当代语料库词频排名: 3,047