grain crops

例句：

1. 1. The farmers are planting a variety of grain crops for the upcoming harvest.
   农民们正在种植各种谷物作物，为即将到来的收获做准备。
2. 2.The grain crops were harvested early in the season to ensure a good yield.
   为了确保高产量，谷物作物在季节初期就收获了。
3. 3. The grain crops are grown in different regions around the world.
   全球不同地区的谷物作物都有种植。