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| 英语 词库 | |||
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| BM | |||
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| The soft, sponge-like tissue in the center of bones. There are two types of bone marrow: yellow made up of mostly fat cells and red the source of red blood cells, platelets, and most white blood cells. | |||
| Bone: 1 短语, 1 学科 |
| 微软 | 1 |
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| 英语 词库 | |||
| |||
| BM | |||
| |||
| The soft, sponge-like tissue in the center of bones. There are two types of bone marrow: yellow made up of mostly fat cells and red the source of red blood cells, platelets, and most white blood cells. | |||
| Bone: 1 短语, 1 学科 |
| 微软 | 1 |