直到最近，许多科学家认为北极到本世纪末的时候可能会在夏季完全变成无冰世界。

Until recently, many scientists thought it might take until the end of the century for the North Pole to become completely ice-free during the summer.

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直到上个冰世纪末——约11000年前，人类才开始建立我们称为“乡村”的农村，当时人类已经存在大约12万年了。

Not until the end of the last ice age, around 11,000 years ago, did he start building anything that might be called a village, and by that time man had been around for about 120,000 years.

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环境记录显示，末次冰期间冰阶(即氧同位素3阶段)期间该区呈现出极端冷湿的气候环境。

Environmental records show that in that area the environment was extremely cold and wet during the interstage of the last glaciation (deep sea oxygen isotope stage 3).

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