spur differential

例句：

1. 1. The company's new producthas a significant impact on market demand.
   该公司的新产品对市场需求产生了重大影响。
2. 2. Theresearcher found that the environmental factors hadan influential effect on the outcome.
   研究者发现，环境因素对结果产生了显著影响。
3. 3.The policy change has sparked a debateabout its potential impact on society.
   政策变更引发了关于其对社会潜在影响的辩论。