双语例句原声例句
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在滞育期间，小袋鼠呆在雌袋鼠的育儿袋里，因而推迟了子宫内第二个受精卵的发育。
During diapause, a young kangaroo stays in the female's pouch and growth of a second fertilized egg inside the uterus is delayed.
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附带注解中显示了受精卵的大致构造图。
An approximate anatomy of the fertile egg is shown in the accompanying notes.
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任何一种动物，每个细胞都包含着来源于受精卵的完全相同的DNA。
In any animal, every cell contains exactly the same DNA, and that DNA comes from the zygote.
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That's where they all come from, they all come from the zygote The word for that is totipotent, totally potent.
这是干细胞的来源,都来源于受精卵,这种细胞称为全能干细胞,具备全部潜能
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It's not self-renewing, in that division of the zygote results in two daughter cells that are no longer the zygote anymore, they're down some pathway.
它是不会自我更新的,受精卵分裂后成了两个子细胞,而这两个子细胞就不再是受精卵了,它们沿着某种路径进行了分化
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During development of the embryo it goes from being a single cell, the fertilized egg, to being a multi-cellular organism with billions of cells in it.
胚胎的发育,始于一个单一细胞,即受精卵,直到形成一个以十亿计数量的细胞构成的,多细胞有机体
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