plain areas

• 平原地区

plain areas的用法和样例：

例句

1. The area changed from a dry plain into highly productive farmland.
   这个地区从干旱平原地区变成生产力高的农田。
2. Big co-operatives can be formed in mountain areas as well as on the plains.
   不但平原地区可以办大社，山区也可以办大社。