efficiency [ɪˈfɪʃənsi]

例句:

• Revenues from "green taxes" could then be channelled back into energy efficiency.
  从“绿色税收”得来的收入便可回过头来用于提高能效。
  来自柯林斯例句
• It was achieved with minimum fuss and maximum efficiency.
  事情事半功倍地完成了。
  
• Workers are remunerated in strict proportion to their efficiency.
  来自J. M. Keynes
• The spa is the last word in luxury and efficiency.
  这家矿泉疗养浴场极尽奢华，功效极高。
  
• Proactively identify areas for opportunity and drive efficiency results.
  来自SA
• Increase our efficiency in everything while reducing our waste.
  来自SA
• Friction lowers the efficiency of a machine.
  摩擦减低机器的效率。
  来自《权威词典》