grain production

例句：

1. 1. The country's grain production has increased significantly in recentyears.
   该国近年来的谷物产量显著增加。
2. 2.The farmers are working hard to improve theirgrain production techniques.
   农民们正努力改进他们的谷物生产技术。
3. 3. The government is investingheavily in the development of new grain productiontechnologies.
   政府正在大力投资于新谷物生产技术的发展中。