南极是世界上最寒冷的地方,那里绝大多数地方都被厚厚的冰雪覆(fù)盖着。可是在这样一个冰天雪地的世界里,竟然有好几个不结冰的湖泊。比如南极干谷里的唐·胡安塘湖,南极东部的翁塔西湖,其中最著名的是地处莱特冰谷里的瓦塔湖。它的湖面常年被三四米厚的冰层覆盖着,但是冰层以下的湖水却终年不冻,而且随深度增加,湖水温 Antarctica is the coldest place in the world, where the vast majority of places are covered with thick ice and snow. But in such a world of ice and snow, there are actually several non-freezing lakes. Such as Don Juan Lake in the Antarctic Dry Valley, Wengtaixi Lake in the eastern Antarctica, most notably Lake Watata in the Wright Ice Valley. Its lakes are covered with ice layers of three to four meters in thickness all year round, but the lakes below the ice layer are not frozen all year round. With the increase of depth, the temperature of lakes