韩国和美国科学家报告称，他们已通过克隆创造出人类胚胎，并从中提取出胚胎干细胞。胚胎干细胞是在医学研究方面具有广阔前景的普适细胞。科学家们表示，他们的目标不是克隆人类，而是促进对疾病的起因和治疗的认识
Scientists in South Korea and America report that they have created human embryos through cloning and extracted embryonic stem cells, the universal cells that hold great promise for medical research. Their goal, the scientists say, is not to clone humans but to advance understanding of the causes and treatment of disease.
(Source: wwenglish.com)