Level 4 · word 3,166 of 20,000
efficiency
/ɪˈfɪʃənsi/
American
- n. 效率, 功效
- Definition
- n. the quality of doing something well with no waste of time or effort
- Example
- The new machine improved efficiency by finishing tasks much faster.
- 新机器完成任务的速度快得多，提高了效率。