reduce tailing

例句：

1. 1. The cost of the new product has been reduced by 20%.
   新产品的成本已经降低了20%。
2. 2.The population is expected to decrease by 5% over the next decade.
   预计未来十年人口将减少5%。
3. 3. The company plans to reduce its carbon footprint by using renewable energy sources.
   该公司计划通过使用可再生能源来减少其碳足迹。