point elasticity of demand

例句：

1. 1.The demand elasticity of this product is very high, which means that it will be more difficult to reduce its price.
   该产品的需求弹性非常高，这意味着降价将更加困难。
2. 2.The government needs to understand the point elasticity of demand to make effective policy decisions.
   政府需要了解需求弹性的点，以便做出有效的政策决策。
3. 3. The economists pointed out that the point elasticity of demand could have a significant impact on the market dynamics.
   经济学家指出，需求弹性的点对市场动态有显著影响。