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

同義詞：linear

1. The food industry uses many additives to enhance flavor and appearance.
   食品工業(yè)使用許多添加劑來增強風味和外觀。
2. Some people prefer organic products because they contain fewer additives.
   有些人喜歡有機產品，因為它們含有較少的添加劑。