vitamins

例句：

1. 1. Vitamins are essential for maintaining good health.
   维生素对保持健康至关重要。
2. 2. The diet of a vitamin-rich food is rich in nutrients and vitamins.
   富含营养和维生素的食谱的饮食是营养丰富的。
3. 3. Many people take vitamins to boost their immune system.
   许多人服用维生素来增强免疫系统。