polar ice caps

Eventually, Agassiz and others convinced geologists and the general public that a great continental glaciation had extended the polar ice caps far into regions that now enjoy temperate climates.

最后，阿加西和其他人说服了地质学家和普通大众，一个巨大的大陆冰川作用已经把极地冰帽延伸到了现在享受温带气候的地区。

It's still 'warm' enough, relatively speaking, to make the 'dry ice' of the polar ice caps boil off.

相对将极地的冰冠气化成“干冰”，这样的温度仍然足够“温暖了”。

When we see lions and polar bears, we marvel at how well these animals have adapted themselves to the savannah and the polar ice caps.

当我们看到狮子和北极熊，我们会惊叹于这些生物怎么能这么好的适应热带草原和极地冰盖。