impact effect

例句：

1. 1. The new policy has a significant impact on the local economy.
   新政策对当地经济产生了重大影响。
2. 2.The sudden drop in oil prices had an impact effect on global markets.
   油价的突然下跌对全球市场产生了冲击效应。
3. 3. The research found that the environmental impact of the project was far greater than previously thought.
   研究发现，该项目的环境影响远大于之前的预期。