transitional helix

例句：

1. 1. The transitional helix of thebrain is crucial for memory formation.
   大脑的过渡螺旋对于记忆形成至关重要。
2. 2. The discoveryof a new species in the transitionalhelix has sparked excitement among scientists.
   在过渡螺旋中发现一种新的物种，引起了科学家的兴奋。
3. 3. The study of the transitional helix is essential for understanding thestructure and function of DNA.
   研究过渡螺旋对于理解DNA的结构与功能至关重要。