Last year,President Obama ended restrictions on the use of federal money for studies of human embryonic stem cells.

VOA: special.2010.11.02

So we needed to come up with another source, a renewable source, so we turned our attention to embryonic stem cells.

因此，我们需要一种替代材料，一种可以再生的材料，我们注意到了胚胎干细胞胚胎干细胞。

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Those are called embryonic stem cells, they are self-renewing, and they are pluripotent, meaning they have many potencies.

这些称为胚胎干细胞,它们可以自我更新,且是多能干细胞,即它们有多种潜能

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Embryonic stem cells can give rise to every cell type in the body.

能分化出人体中,各种类型的细胞。

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So we need to get embryonic stem cells to form surface cells.

那么，我们就应该从表层细胞中提取胚胎干细胞。

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Those are obvious what the differences are, embryonic stem cells are derived from embryos .

这些名称就明确揭示了它们之间的区别,胚胎干细胞是源自于胚胎

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Further down this line here are embryonic or let's say adult brain stem cells.

沿着这条线再往后一些就是胚胎,或者就说是成人脑中的干细胞吧

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