Bone marrow that actively produces blood cells is called red marrow, and bone marrow that no longer produces blood cells is called yellow marrow.
活跃生产血细胞的骨骼叫做红骨髓，不再产生血细胞的骨骼叫做黄骨髓。
2
In 1986, archaeologists discovered the Yellow Emperor in Shaanxi age of bone carved with words, experts believe that this is China's most ancient text.
1986年，考古工作者在陕西发现了黄帝时代的骨刻文字，专家认为这才是中国最古老的文字。
3
Carefully, to avoid injuring her, I rub cream into the yellow skin, which rolls freely over the bones, feeling perfectly the outline of each bone in the back.