1. 效率工：efficacy 功效 | efficiency bar 效率工 | efficiency engineer 效率专家
2. 考绩关限：effective secretary 实职秘书 | efficiency bar 考绩关限 | efficiency dividend 效率盈利
3. 效率工资：小组实践活动/group practice | 效率工资/efficiency bar | 校长住房/school house
4. 效率工资线：效率成本 efficiency cost | 效率工资线 efficiency bar | 效率审计 efficiency audit