grains

例句：

1. 1.The farmer harvested the grains from his fields.
   农民从他的田地里收获了谷物。
2. 2.The grains of rice are small and round.
   稻米的颗粒很小，呈圆形。
3. 3. He used to grow grains on his farm.
   他以前在农场种植谷物。