The main body of these dunes may not have shifted for 5,000 years. 这些沙丘的主体 可能已有5000多年未曾移动
But they will not do so for much longer. 但它们也坚持不了多久
For insects the bombardment can be very severe indeed. 而昆虫则得遭受猛烈“炮火”的轰击
and reduce visibility for days over areas the size of Britain. 所到之处能见度骤降为零 几天内横扫的地区比英国还大
leaving little for the land on the other side. 只有一小部分到达另一边的土地
for filling the stomach with snow could be fatal. 因为肚子里装满雪将是致命的
The air is just too cold and too dry for it to do so. 又冷又干的空气使它们无法解冻
The salamander might not encounter food for several months, 童态河溪螈可能 已有几个月没有吃东西了
so these species must have been isolated for a very long time. 所以这些物种必定 与世隔绝了相当长的一段时间