Carla knows nothing about lymphoblasts, or why she's going to have to have a bone-marrow sample taken, but she knows about leukemia.
卡拉对成淋巴细胞和为什么要提取她的骨髓样本一无所知，但是对白血病是清楚的。
Occasionally, it may be necessary to study a sample of your bone marrow to diagnose anemia.
有时，你可能需要去做腰穿（腰椎穿刺）以获得骨髓样品进行检查与鉴别诊断。
A bone marrow aspiration is done by removing a sample of cells from the marrow.
骨髓穿刺是从病人骨髓中取出一小部分细胞样品。
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