seed core

例句：

1. 1. The seeds of the tree are rich in nutrients and can be used as a food source.
   这棵树的种子富含营养，可以作为食物来源。
2. 2. The plant's seed core is a crucial part for its growth and reproduction.
   植物的种子核心是其生长和繁殖的关键部分。
3. 3.The seed core plays a vital role in the plant's development and survival.
   种子核心在植物的发展和生存中起着至关重要的作用。