intraembryonic coelome

例句：

1. 1. The embryonic coelom is the first layerof the developing embryo.
   胚胎内腔是发育中的胚胎的第一层。
2. 2. Thestudy of the embryoniccoelom has important implicationsfor understanding developmental biology.
   研究胚胎内腔对理解发育生物学具有重要意义。
3. 3. Duringthe formation of the embryo, the coelom acts as a space for thegrowth and development of the embryonic tissues.
   在胚胎形成过程中，内腔起到胚胎组织生长和发展的空间作用。