exencephalon

例句：

1. 1.The skull of the dinosaurwas a marvel of evolution.
   恐龙的头骨是进化的奇迹。
2. 2. Theskull is made up ofseveral different bones.
   头骨由不同的骨头组成。
3. 3. The skull is oftenused as anatomical reference material.
   头骨常被用作解剖学参考材料。