() [] the process of improving an existing product or creating a new and better product产品创新◆Competition between firms results in an increased emphasis on product innovation.公司间竞争的结果是日益注重产品创新。 [] a product that is new or has been improved in some way创新产品◆Product innovations are introduced to respond to changes in market demand.引入创新产品来应对市场需求的变化。