ooblast

例句：

1. 1.The female mouse is the mother of all her offspring.
   雌性老鼠是所有后代的母亲。
2. 2.The ovum was fertilized by a spermatozoon.
   卵子被一个精子受精。
3. 3. Oocytes are the reproductive cells in females that can be fertilized and develop into eggs.
   卵细胞是女性生殖细胞，可以受精发育成卵子。