In a last - ditch effort to conceive , these women often have to turn to donor eggs or embryos 当实在是无计可施时，这些妇女不得不求助于捐献的卵子或胚胎。
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Researchers in south korea , who declared the breakthrough in the leading journal science , also said that they had also culled stem cells from 30 embryos created using donor eggs 在韩国,研究人员在权威杂志《科学》上宣布了此次突破，并声称他们从使用捐赠者的卵细胞培育出的胚胎中分离出了干细胞。
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