derived ideal

例句：

1. 1. The new product is derived fromthe old one.
   新产品是旧产品的衍生物。
2. 2. The company's profits are derivedfrom its sales.
   公司的盈利来自其销售。
3. 3.The research was based on a number ofderived theories.
   这项研究基于一系列衍生理论。