hard fibre core

例句：

1. 1. The new product has a hard fibre core that makes it durable and long-lasting.
   新产品具有硬纤维核心，使其耐用且经久不衰。
2. 2.The construction of the bridge required the use of a hard fibre core to ensure its stability.
   桥梁的建设需要使用硬纤维核心来确保其稳定性。
3. 3.The company's latest innovation uses a hard fibre core to improve energy efficiency.
   该公司的最新创新使用了硬纤维核心来提高能源效率。