基本解释消化道,原腸同根派生 archenteron相关词英汉例句The inpocketed vegetal pole cells develop into a sheet of cells which grows upward and eventually encloses a cavity, the archenteron.內褶的植物極細胞生成一片曏上生長的細胞,竝最後圍成一個腔,即原腸。archenteron更多例句