HDL

例句：

1. 1. HDL is important for maintaining good cholesterol levels in the blood.
   HDL对于保持血液中良好的胆固醇水平非常重要。
2. 2. A diet rich in fruits and vegetables can help lower your HDL levels.
   富含水果和蔬菜的饮食可以帮助降低你的HDL水平。
3. 3. The doctor recommended a low-fat, high-fiber diet to improve his HDL levels.
   医生建议他采用低脂肪、高纤维的饮食来提高他的HDL水平。