在过去的250万年里欧洲的冰河时期气候循环加速了这个侵蚀的过程。
The climatic cycles of the glacial period in Europe over the past 2.5 million years have accelerated this erosion process.
在过去的250万年里欧洲的冰河时期气候循环加速了这个侵蚀的过程。
The climatic cycles of the glacial period in Europe over the past 2.5 million years have accelerated this erosion process.
应用推荐