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
No one was injured in a blast which was attributed to the buildup of gas by one town official."
镇政府天然气泄漏导致爆炸,所幸并无一人受伤",因而并无人员在爆炸中受伤]
Man was seen as a solitary creature, not inherently a part of society.
人被看做是一个独立的客体,而不天然作为社会的一部分
This is introducing a gene, it's a natural gene but it's not - it's a natural gene that's found in humans and is actually expressed all over your body in different levels, but you're concentrating it or over expressing it in one particular region of tissue in order to have a particular effect.
通过导入一个基因,这是一个天然基因但--,是一种于人体内发现的天然基因,在全身细胞中都有不同程度表达,但需要集中在组织的某一特定区域,表达或过表达,才能达到特定疗效
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