Marrow is the spongy center inside the bones.

骨髓存在于骨骼的海棉状中心部位。

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He was being treated at a medical center there for a bone marrow disease.

他为因骨髓病在那时的医学中心接受治疗。

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He was being treated at a medical center there for a bone marrow disease.

他为因骨髓病在那时的医学中心接受治疗。

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