Previous research revealed various sources of bone strength, such as sacrificial bonds between fibers that break and re-form to dissipate stress, but researchers had yet to discover exactly how they all worked.

• 以前的研究揭示了骨骼力的各种各样不同的来源，例如：破坏和重组在纤维中损失的粘合物去驱散压力，但是研究者必须准确地揭示他们全部是怎样工作的。