There's another one which suggests that 30 million hectares of land in Europe, an area the size of Poland, will be vacated by farmers between 2000 and 2030.
另一种研究表示 欧洲有三千万公顷的土地 其面积大小相当于波兰的领土面积 农民将会在 2000 至 2030 年间撤离