单词	blastocyst
释义	blastocyst /ˈblastə(ʊ)sɪst / noun Embryology A mammalian blastula in which some differentiation of cells has occurred.Many scientists believe blastocysts - stem cells taken from days-old embryos - have much greater potential.... The fundamental question concerns the nature of the blastocyst from which stem cells are derived. Adult stem cells were injected into a mouse blastocyst, an early embryonic stage of a mouse.
随便看	have a soft spot (also soft corner) for have at have a thick (or thin) skin have a thick skin have a thing about have a thing for have a thin time have a tiger by the tail (also be riding a tiger) have a tin ear have a way with have a way with one have a whale of a time have a will of one's own have a word have a word in someone's ear have bats in the (or one's) belfry have-been have been around have been around the block (a few times) have been known to do something have been there before have blood on one's hands have clean hands have designs on have every confidence in

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