per capita output of grain

例句：

1. 1.The per capita output of grain in this region is significantly higher than the national average.
   该地区的人均粮食产量远高于全国平均水平。
2. 2.The government has been working hard to improve the per capita output of grain.
   政府一直在努力提高人均粮食产量。
3. 3. The per capita output of grain is a key indicator of a country's food security.
   人均粮食产量是衡量一个国家食品安全的关键指标。