磨减

例句：

1. 3.
   在数学中
2. 1. The company is planning to reduce its workforce by 10% next year.
   公司计划明年将员工人数减少10%。
3. 2. The cost of the project has been reduced by half due to better planning.
   由于更好的规划，该项目的成本已经减少了一半。
4. 3. The government is considering a reduction in taxes to stimulate economic growth.
   政府正在考虑减税以刺激经济增长。