1. Many processed foods contain various additives to enhance flavor and prolong shelf life.
许多加工食品含有各种添加剂，以增强味道和延长货架寿命。

2. The additive effect of caffeine and sugar in energy drinks can cause a spike in energy levels.
能量饮料中咖啡因和糖的附加效应可能导致能量水平的飙升。

3. The color additive used in cosmetics must undergo rigorous testing to ensure safety for consumers.
用于化妆品中的色素添加剂必须经过严格测试，以确保对消费者的安全性。

4. The additive nature of the steak marinade made it taste even more flavorful.
牛排浸泡料的附加特性使其味道更加丰富。