impact multiplier

例句：

1. 1.The impact of the new policy on the economy is significant.
   新政策对经济的影响是显著的。
2. 2.The impact multiplier shows how much output will increase with a given input.
   影响乘数显示了给定输入将如何增加产出。
3. 3. The government's decision to cut taxes has a significant impact multiplier effect on the economy.
   政府决定减税对经济产生了显著的乘数效应。