单词 | 衣胞 |
例句 | DEFINITIVE EXAMPLES 权威例句〔embryonic membrane〕Any of the membranous structures closely associated with or surrounding a developing vertebrate embryo, including the amnion, chorion, allantois, and yolk sac.胚膜:任何与发育中的胚胎相关或包围胚胎的膜状结构,包括衣胞、绒膜胚囊、尿膜和卵黄囊美国传统 |
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