在冰面上凿开一个洞，为那些“冬泳迷”们开拓出足够的水域来畅游一番。
A hole is cut in the ice to expose enough water for adrenaline junkies to dive into.
严寒也给予人们一些挑战。比如冬泳，这似乎是一项在全球范围内都极具魅力的运动。在冰面上凿开一个洞，为那些“冬泳迷”们开拓出足够的水域来畅游一番。
The chill also offers challenges. Ice swimming, for example, seems to be one with global appeal. A hole is cut in the ice to expose enough water for adrenaline junkies to dive into.
生活在一个没有天敌的环境中是洞螈长寿的原因之一，但其根本的原因还是一个迷。
Living in a stable environment without predators has made it possible for olms to have long lives, but the mechanisms underlying their longevity are unknown.
应用推荐