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Why people are so excited about embryonic stem cells is because in nature they become all the cells of the body.

胚胎干细胞如此让人激动是因为它的天然功能就是分化成身体所有的细胞。

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Embryonic stem cells are the source of every cell, tissue and organ in the body.

身体中的每一个细胞，组织和器官都来源于胚性干细胞。

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During an infusion, stem cells enter the body through a vein leading back to the heart.

VOA: special.2011.02.01

That's why people are so excited about embryonic stem cells because in nature they become all the cells of the body.

这就是为什么胚胎干细胞如此让人激动,因为它的天然功能就是变成所有身体细胞

耶鲁公开课 - 生物医学工程探索课程节选

So the idea is, if you can take a cell... you can take a stem cell from your body

所以如果你能够取得一个细胞……如果你能够从你体内取得一个干细胞，

关于干细胞的研究 - SpeakingMax英语口语达人

Harvesting stem cells from the body is an arduous task, in part because so few of the cells exist in people.

FORBES: Cell makers

The company has assembled a dream team of researchers in adult stem cells from Harvard, Stanford, the Scripps Institute and the University of Washington to pool their intellectual property and their ideas on making adult stem cells regenerate deteriorated body parts.

FORBES: Magazine Article

The technique used by Green and Hollister is part of a burgeoning field called regenerative medicine, which involves engineering therapies -- using things like stem cells, or "body parts" constructed out of biological material -- to harness the body's ability to heal itself.

CNN: 3-D printer helps save dying baby