There's a lot of interest in bone marrow and the stem cells that come from bone marrow and there's a couple of reasons for this.

人们对骨髓以及从骨髓中,提取的干细胞有着浓厚的兴趣,这其中有多种原因

耶鲁公开课 - 生物医学工程探索课程节选

Of a million cells in the bone marrow there might only be one of these.

一百万个骨髓细胞中,也许只有一个多能干细胞

耶鲁公开课 - 生物医学工程探索课程节选