skulls
Your skull is the bony part of your head which encloses your brain.
Her husband was later treated for a fractured skull.
她丈夫后来因颅骨碎裂而接受治疗。
I discovered two human skulls, obviously very old and half disintegrated.
我发现的两块头颅骨,年代显然很久远并且已经半腐烂。