musculamine

例句：

1. 1. Muscles are made up of muscle fibers, which contain muscle proteins.
   肌肉由肌肉纤维组成，其中包含肌肉蛋白。
2. 2. Muscles need to be hydrated regularly to maintain their strength and flexibility.
   肌肉需要定期补水以保持其力量和灵活性。
3. 3. Muscles are essential for movement and balance.
   肌肉对于运动和平衡至关重要。