flat-kernel seed

例句：

1. 1.The flat-kernel seed is a popular food source for many people.
   平核种子是许多人喜爱的食品来源。
2. 2. The flat-kernel seed is rich in nutrients and can be used to make various products.
   平核种子富含营养，可用于制作各种产品。
3. 3.The flat-kernel seed has been cultivated for thousands of years and is still widely used today.
   平核种子已经种植了数千年，至今仍被广泛使用。