valve ovicell

例句：

1. 1. The study focused on the role of ovicells in fertilization.
   该研究专注于卵细胞在受精中的作用。
2. 2.Ovicells are responsible for the production of eggs and the development of embryos.
   卵细胞负责产生卵子和胚胎的发展。
3. 3.In humans, ovicells are located in the ovaries and produce eggs.
   在人类中，卵细胞位于卵巢中并产生卵子。