Severed limb的用法和样例：
例句
- It seemed, therefore, that all scientists needed to do was figure out how to induce an amputated limb to form a blastema.
因此科学家的目标，就是找出如何诱导断肢形成芽基的方法。 - The researchers also found that the dermis and cartilage played an important role in shaping the limb.
研究人员同时发现真皮细胞和软骨细胞在断肢再生的过程中扮演着十分重要的角色。
