additives

n.something added to enhance food or gasoline or paint or medicine

adj.

characterized or produced by addition

"an additive process"

designating or involving an equation whose terms are of the first degree

同义词：linear

1. The food industry uses many additives to enhance flavor and appearance.
   食品工业使用许多添加剂来增强风味和外观。
2. Some people prefer organic products because they contain fewer additives.
   有些人喜欢有机产品，因为它们含有较少的添加剂。