我国历史悠久，幅员辽阔，土地广袤，物产丰饶，汇集了世界上众多复杂的地形、地貌：有雄伟的高原、起伏的山岭、广阔的平原、低缓的丘陵，还有群山环抱、中间低平的盆地，它们共同构成了我们美丽祖国的广阔大地。 ( China has long history, vast territory, broad land and abundant products and collects numerous complex terrains and landforms in the world, including magnificent plateau, undulating mountains, vast plains, low hills and middle-low basins surrounded by mountains, which constitute the wide land of our beautiful motherland together.)