现在的研究表明，在最后一次冰河时期的尾声阶段，阿拉斯加东南部沿岸的内大陆架的相当大的区域并未被冰覆盖。

Research now indicates that sizable areas of southeastern Alaska along the inner continental shelf were not covered by ice toward the end of the last Ice Age.

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人们过去曾猜测，冰山从阿拉斯加和加拿大山脉向西延伸到大陆架的最边缘，也就是大陆架扁平的、延伸到海洋中的水下大陆那部分。

It had been assumed that the ice extended westward from the Alaskan/Canadian mountains to the very edge of the continental shelf, the flat, submerged part of the continent that extends into the ocean.

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尼加拉瓜的一位土木工程师已经联系了加利普，这位工程师想在重型设备无法到达的地方建造由混凝土拱架支撑的土坯屋顶。

Gharib has already been contacted by a civil engineer in Nicaragua, who wants to put up buildings with adobe roofs supported by concrete arches on a site that heavy equipment can't reach.

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