naihead

例句：

1. 1.The skeletal remains of the ancient creature were discovered in the cave.
   在洞穴里发现了这个古代生物的骨骼遗骸。
2. 2. The scientist is studying the structure of the human brain.
   这位科学家正在研究人类大脑的结构。
3. 3. The naihead was a crucial part of the ancient civilization's technological advancements.
   头骨是古代文明科技进步的关键部分。