Boats could carry heavy weights, but canals could not cross hillyterrain; turnpikes could cross the hills, but the roadbeds could not stand up under great weights.
船可以运载重物，但运河不能穿越丘陵地带；高速公路可以翻山越岭，但路基承受不了巨大的重量。
2
Peach is located in the middle reaches of the River City, a hillyterrain and valley.
城区地处桃河中游，属河谷及丘陵地形。
3
Driving on flat terrain offers improved fuel economy as compared to driving on hillyterrain.