caffeine and sodium benzoate

例句：

1. 1.Caffeine is a stimulant that can increase alertness and focus.
   咖啡因是一种能增加警觉性和专注力的兴奋剂。
2. 2. The coffee shop offers a variety of caffeinated drinks.
   这家咖啡馆提供各种含咖啡因的饮料。
3. 3. Caffeine withdrawal can cause headaches and fatigue.
   咖啡因戒断可能导致头痛和疲劳。
4. 1. Sodium benzoate is commonly used as a preservative in food and beverages.
   苯甲酸钠常用于食品和饮料中作为防腐剂。
5. 2. The food was treated with sodium benzoate to prevent spoilage.
   为了防止食物变质，食物被苯甲酸钠处理过。
6. 3. Sodium benzoate is also used in the production of dyes and pigments.
   苯甲酸钠还用于染料和颜料的生产。