Dado-head

例句：

1. 1. The skull is the first thing you see when you open your eyes.
   当您睁开眼睛时，首先看到的是颅骨。
2. 2. Scientists are studying the structure of the human skull to understand its evolution.
   科学家们正在研究人类颅骨的结构，以了解其进化过程。
3. 3. The skull was a valuable artifact in ancient Egypt.
   颅骨在古埃及是一个宝贵的文物。