An ice shelf is a large floating sheet of ice permanently attached to a landmass.

冰架是永久附着在的一块巨大的漂浮冰层。

It's believed the emergence of landmass began roughly 4 billion years ago.

也就是升时期大约始于40亿年前。

Eventually, the landmass will break right off, giving birth to a brand new ocean.

最终，这片块会分裂，孕育出一片崭新的海洋。

Roughly 70% of Earth's surface is water, and much of its landmass is unpopulated.

因为大约70%的球表面都是水，而即便是，也还是有很多方是无人居住的。

They could be rocky like Earth or water worlds without landmasses.

它们可能跟球一样多岩石，也可能是没有的水世界。

The life that was hit the hardest was that lived on the smaller landmasses.

受到最大打击的生命是生活在较小块之的那些。

The larger the landmass, the less of impact these change have.

域越广，这种变化的影响越小。

During that period, most of the world's big landmasses were connected in what scientists call Pangea.

在此期间，世界大部分大片都连接在科学家所谓的盘古大。

I think the way that the city's actually squeezed into this island landmass that kind of compresses.

我想这座城市真的是拼命挤进了这块岛屿填成的，压缩它，压缩体验、压缩空间、压缩时间。

We are the countries of the continent of Europe, the northwestern portion of the large landmass called Eurasia.

我们是欧洲大的国家，位于亚欧大的西北部。

We are the countries of the continent of Europe, the northwestern portion of the larger landmass called Eurasia.

我们是欧洲大的国家，位于亚欧大的西北部。

As recently as 11,000 years ago, the two continents were actually connected by a landmass known as Beringia.

直到 1.1 万年前，这两个大实际还被一块叫做白令桥的连接在一起。

Historians estimated the empire once ruled more than 400 million people and had 25 percent of the earth's landmass.

历史学家估计，这个帝国曾经统治着超过4亿人口，拥有球25%的。

Trees and vegetation currently cover over 50% of Singapore's landmass, reducing the need for air conditioning and encouraging low-pollution transportation.

目前，树木和植被覆盖了新加坡 50％ 以的，减少了对空调的需求，并鼓励了低污染的交通运输方式。

Gondwanax means " lord of Gondwana." The name suggests the Gondwana landmass in the southern area of the supercontinent Pangaea.

Gondwanax的意思是“冈瓦纳之主”。这个名字表明冈瓦纳大位于泛大的南部区。

In extreme cases, like what might happen to the Maldives in a few decades, entire landmasses may become completely swallowed.

在极端情况下，比如马尔代夫在几十年后可能会发生怎样的情况，整个大可能会被完全吞没。

Take a tour from the harbor to Hashima Island, an eerie landmass which was once home to miners and their families.

参加游览，从港口搭船至端岛，这块岛屿相当奇妙，过去曾是矿工及其家人的落脚处。

But this domestication happened in different kinds of cats, around 5300 years ago, on the other side of this huge landmass.

不过这种驯化发生在不同种的猫中，在大约5300年前在这片巨大的另一边。

We need to figure out how eight billion people reside on this landmass.

我们需要弄清楚 80 亿人是如何居住在这片的。

Portions of this sphere could be terraformed and given stable atmospheres, oceans, and landmasses.

这个球体的部分区域可以被改造，拥有稳定的大气层、海洋和。