choline theophyllinate

例句：

1. 1.Choline is an essential nutrient for brain health.
   胆碱是大脑健康所必需的重要营养素。
2. 2.The compound contains choline and taurine, which are both important for brain function.
   该化合物含有胆碱和牛磺酸，对大脑功能都非常重要。
3. 3.Choline is often used in supplements to boost memory and concentration.
   胆碱常被用作补充剂，以增强记忆力和集中力。