skeletal muscle fiber

例句：

1. 1.Skeletal muscle fibers are responsible for the movement of our arms and legs.
   骨骼肌纤维负责我们的手臂和腿部的运动。
2. 2.The skeletal muscle fibers in the human body are incredibly strong.
   人体中的骨骼肌纤维非常强壮。
3. 3. Skeletal muscle fibers are also important for maintaining good posture.
   骨骼肌纤维对于保持良好的姿势也很重要。