效率 xiàolǜ efficiency
How to remember 效率: 效 result + 率 to command = efficiency.
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How it is used
- Efficiency - 提高效率 (tígāo xiàolǜ) raise efficiency; 工作效率 work efficiency.
- Output relative to effort/time; a management and productivity staple. 高效率 = highly efficient; 有效率 = efficient.
- Note 率 is lǜ here. Distinguish from 效果 (xiàoguǒ, effect/result) - 效率 is about speed/productivity, 效果 is about how well something works.