酮类固醇

例句：

1. 1. The body produces a variety of hormones to regulate metabolism and maintain homeostasis.
   身体产生各种激素来调节新陈代谢和维持稳态。
2. 2. Ketones are often used in sports nutrition as they can help improve endurance and recovery.
   在运动营养中，酮体经常被使用，因为它们可以帮助提高耐力和恢复。
3. 3. In some cases, high levels of certain ketones may indicate an underlying medical condition.
   在某些情况下，某些酮体的高水平可能表明潜在的医疗状况。