pēi pán
- blastoderm
- germinal disc
- embryonic disc
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a gust of wind,
a handful of,
A horizon,
a host of,
a household word,
a kind of,
a la carte,
a la mode,
a lack of,
a large amount of,
相似单词
胚根,
胚根鞘,
胚孔,
胚瘤,
胚囊,
胚盘,
胚泡,
胚乳,
胚胎,
胚胎的,