这个小镇是通往广阔内陆的门户。

The small town is the gateway to the vast ___hinterland.

科学家们正在研究这片未知的内陆地区。

Scientists are studying the unexplored ___hinterland of this region.

这个港口城市的农产品主要来自周边农村地区。

The agricultural products of this port city mainly come from its rural ___hinterland.