“颅骨”造句

硬脑膜是覆盖在颅骨里面的鳍状物组织.
The dural is the fin tissue covering the inside of the skull.

他的耳朵很小,紧紧贴在颅骨两侧.
His ears were small and set close to his head.

他从窗子摔了出去,跌裂了颅骨.
He fell out of the window and cracked his skull.