marginal ovule

例句：

1. 1. The plant's growth is closely related to the distribution of its marginal ovules.
   植物的生长与其边缘胚珠的分布密切相关。
2. 2.The study focused on the role of marginal ovules in determining plant reproduction.
   该研究专注于边缘胚珠在决定植物繁殖中的作用。
3. 3. The researcher found that the marginal ovules play a crucial role in the development of the plant's reproductive system.
   研究者发现，边缘胚珠在植物生殖系统的发展过程中起着至关重要的作用。