北极的

About 50 million years ago, Earth was a hothouse – the poles were ice free, and crocodiles lived in the Arctic.

大约在5000万年前，地球是一个名副其实的温室——就连两极也没有冰封，而鳄鱼就生活在北极地区。

The size of the North Polar Ice Cap in the month of September is

北极冰盖在9月份的大小

In this permanently cold environment, the ice cap from t

在这种持续严寒的条件下，冰帽从北极逐渐向南扩展。

In this permanently cold environment, the ice cap from the North Pole spread southward.

在这种持续严寒的条件下，冰帽从北极逐渐向南扩展。

The air picks up moisture from the polar ice cap and bodies of water it may pass over.

空气从它可能经过的北极冰帽和水域吸收水分。

Some scientists are drifting their routes to study the ocean currents and the mysteries of the Arctic ice cap

有的科学家正在对其漂流路线进行研究，了解海洋洋流和北极冰帽的奥秘

Polar bears living in a large southern edge of the Arctic pack ice zone.

北极熊生活在有大片浮冰的北极南部边缘地带。

Peary's ship, the Roosevelt , had been especially designed for breaking through Arctic ice packs.

皮尔的船舶，罗斯福，已经是专为冲破北极冰包。

If this trend is not stopped,we may have virtually ice-free Arctic within 30 years.

如果不阻挡这样的趋势，北极在30年内可能就完全没有冰雪了。

We report on the race for the riches under the northern icecap.

正当股票市场日渐崩溃时，北极迎来了新一轮的冷锋过境。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。