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单词 pre-embryo
释义
pre-em·bry·o (prē-ĕmbrē-ō)
n. pl. pre-em·bry·os
A fertilized ovum up to 14 days old, before it becomes implanted in the uterus.

pre-embry·onic (-ŏnĭk) adj.
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更新时间:2024/9/20 9:34:02