internal arcuate fibers

例句：

1. 1.The internal arcuate fibers in the skin are responsible for its elasticity.
   皮肤中的内层纤维负责其弹性。
2. 2. The study of these fibers is crucial for understanding how the body responds to injury.
   研究这些纤维对于理解身体如何对损伤作出反应至关重要。
3. 3. The fibers were found to be highly resistant to wear and tear, making them ideal for use in industrial applications.
   这些纤维被发现具有很强的耐磨性，使其成为工业应用的理想选择。