dextrosamine

例句：

1. 1. This supplement contains a form of L-carnitine that may help improve athletic performance.
   这种补充剂含有一种形式的左旋肉碱，可能有助于提高运动表现。
2. 2. The body needs L-carnitine to convert fat into energy during exercise.
   身体需要左旋肉碱来在锻炼时将脂肪转化为能量。
3. 3.L-carnitine is often used as a dietary supplement to support muscle growth and recovery.
   左旋肉碱经常被用作膳食补充剂，以支持肌肉生长和恢复。