嘌呤

例句：

1. 1. The food contains a high amount of purines, which can be harmful to some people.
   这种食物含有大量的嘌呤，对某些人可能有害。
2. 2. Purines are found in many foods and beverages, including meat, fish, and dairy products.
   嘌呤存在于许多食物和饮料中，包括肉类、鱼类和乳制品。
3. 3. Some medications used to treat hypertension contain purines as an active ingredient.
   用于治疗高血压的一些药物含有嘌呤作为活性成分。