全部土地在落矶山脉和密西西比河之间从德克萨斯州到萨斯喀彻温省过去是一个巨大的广阔的大草原。
All the land between the Rocky Mountains and the Mississippi River from Texas to Saskatchewan used to be a giant expanse of prairie.
在动物园里，动物不再被关在笼子里，而是生活在广阔的空间里：要么是露天的环境，要么是巨大的温室。
In zoos, animals are no longer kept in cages, but in great spaces, either in the open air or in enormous greenhouses.
火星表面显示出广泛的地质特征，包括巨大的火山——太阳系中已知的最大的火山——和广阔的撞击坑。
The surface of Mars shows a wide range of geologic features, including huge volcanoes—the largest known in the solar system—and extensive impact cratering.
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