Scientists agree that the key player in this scenario is the West Antarctic ice sheet, a Brazil-size mass of frozen water that is as much as 7000 feet thick.

科学家们一致认为，这一情境中的关键推手是南极西部的冰层，这是一块跟巴西（面积）差不多大小的冰原，厚达7000英尺。

youdao

This is a huge advantage for the snowshoe hare since, by contrast, the feet of its predators usually sink right down into the snow.

这是雪鞋兔的一个巨大的优势，因为相比之下，它的捕食者的脚通常会陷进雪里。

youdao

This is a machine to warm our feet in winter.

这是一台可以在冬天温暖我们双脚的机器。

youdao

In this case, the basic column of air is twelve and a half feet long and there are something called "Partials" or the "Harmonic series" That happens in anything, on a string instrument or whatever, but on the horn it's very distinct and that's what makes the different notes.

像这样,基本空气柱有十二个,每个半英尺长,圆号能发出分音,或泛音列,弦乐器或是,其他别的乐器中都有,但在圆号上,效果相当不同,这就是它能奏出不同音符的原因

耶鲁公开课 - 聆听音乐课程节选

Obviously there was -- this is a little bit more unique because it is in 5, 000 feet of water, not in several hundred or a hundred feet of water.

WHITEHOUSE: Press Briefing

What is most intriguing about the idea of a reverse Great Migration is this: Why are blacks voting with their feet?

FORBES: What Explains The Middle-Class Black Exodus From The Northeast?

And part of what we've done over the course of this year is to put a floor under people's feet.

WHITEHOUSE: President Obama Takes Questions from Senate Democrats