北极的 arctic a ; arctic c a
北极的海洋动物的程序 a map Arctic Marine Animal Program
北极熊的赛跑 Running From a Polar Bear
吃西瓜的北极熊 Polar Bear Eating a Watermelon
开凿航道的北极探险队 Arctic Explorers Cutting a Channel
Brittleness remains a problem when building steel structures in cold conditions, such as oil rigs in the Arctic.
对于在寒冷条件下建造钢结构，比如北极的石油钻井平台，如何解决材料的脆性仍然是一个问题。
A hunter who took what appeared to be a baby polar bear from the North Pole has been found and will face strict punishment.
一个猎人从北极捕获了一只疑似北极熊幼崽的动物，目前已被发现，他将面临严厉的惩罚。
Shubin distinguished himself by leading an expedition to the Arctic, which uncovered the remains of a fish with a wrist-a creature with part fin and limb.
舒宾的杰出成就是带领了一次北极探险。在这次探险中，他们发现了一种半鳍半肢的动物——一条有腕的鱼化石。
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