It probably was left here by the retreatingglacier. See over there that field of snow?
它大概是在冰川溶解退却时被遗留下在这里。看那处,那是冰雪的范围吗?
2
It had been carved out about 20,000 years earlier by a retreatingglacier that deposited thousands of beach-smooth cobblestones around the hole, "like a hen laying eggs," Mr. Hussey said.
A week later students in the high Arctic reported that a glacier in Svalbard that had been retreating at an average annual rate of 20 metres since 1926 was now retreating by 40 metres a year.