The author ever saw a piece of oracle bone in Bejing Library, and analyzed that it probably belonged to elephant scapula according to its thick bonebed.
作者曾在北京图书馆看到一片卜骨，骨质特厚，据分析很可能也属于象胛骨。
2
Now the river bed is bone dry.
目前河床十分干燥。
《柯林斯英汉双解大词典》
3
Get into the habit of early rising, and you will not want to lie in bed like a lazy bone.