例如，在过去的冰河时代，冰川向下穿过北美和欧洲，逐渐切断了部分人口之间的联系。
For example, during past ice ages, glaciers advanced down through North America and Europe and gradually cut off parts of populations from one another.
大多数些湖泊在山谷都呈U形，是上一个冰河时代冰川刻蚀的结果。
Most of the lakes lie in U-shaped valleys that were carved by glaciers during the last ice age.
这些科学家采用一个计算机模型进行研究，该模型将最后一个冰河时代末期冰川消融所造成的地表持续移动纳入考虑之中。
The scientists used a computer model to take account of ongoing movements in the Earth's surface caused by the retreat of glaciers at the end of the last ice age.
应用推荐