单词：embryo-sac cell
embryo-sac cell的用法和样例：
例句
- In the gymnosperms the megaspore gives rise to a cell that is termed the embryo sac because of its similarity to the angiosperm structure.在裸子植物中，大孢子也产生一个细胞，因为它类似于被子植物的胚囊细胞，故也可以称之为胚囊。
- The gonads form from a group of large granulated yolk sac cells which invacle the germinal ridges.性腺是由一群大的颗粒的卵黄囊细胞入缀生殖峭而形成。
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