allotrope

例句：

1. 1.The discovery of a new allotrope of carbon could revolutionize the field of chemistry.
   发现一种新的碳同素异形体可能会彻底改变化学领域。
2. 2. The study of allotropes is essential for understanding the properties of materials.
   研究同素异形体对于理解材料的性质至关重要。
3. 3.Allotropes are unique structures that exhibit different physical and chemical properties.
   同素异形体是具有不同物理和化学性质的特殊结构。