The short wave signals bounce off the ionosphere that surrounds the Earth,back to the ground and then back to the ionosphere.

So,composition alone can't give you the answer to the question why is the plywood superior to the solid pine board?

只用组成成分无法解答,这个问题,为什么胶合板要优于松木板呢？

Then it undergoes a reorganization in which the vice neutrons, assistants to the neutron, the assistants to the vice neutrons exchange places.

而开始重组,其中，副中子，辅助中子，辅助副中子，开始交换位置。

Then you get to The Epistle to the Hebrews, or,in what a better translation would be, The Letter to the Jews.

然后是希伯来书，翻译得更好点的话，应该是，犹太人书。

This temporarily blocks signals that pass through the nerves to the muscles of the body and back to the brain.

This is, you see, also on 2 at the beginning here: I went to the cold-water flat with the boys and Dean came to the door in his shorts.

你们看，这也是在第二页的开始：,我和男孩们去了冷水公寓,安穿着短裤来到门口。

Welcome to THE MAKING OF A NATION Welcome to THE MAKING OF A NATION American history in VOA Special English.

So I shoot to the left and the goalie dives to the left, my payoff is what? It's 4.

我从左路射门而门将也扑向左路时,我的收益是4

And the planner organizes all the details for the celebration, from the flowers to the food to the entertainment.

We're going to be looking at the solutions to the Schrodinger equation for a hydrogen atom, and specifically we'll be looking at the binding energy of the electron to the nucleus.

我们将研究下氢原子薛定谔方程的解,特别是电子和核子的结合能,我们将研究这部分。

They had many complaints. One said Paul talked to the other students instead of paying attention to the lessons.

That's the work that the system is doing to the environment. I'm doing work to the environment. The work is negative, which means that work is being done to the environment.

功的大小,就是矩形的面积,这样我们就实现了一台热机，冷却，加热，加热,冷却，系统回到了初态。

You might say when I wear my best clothes, I am dressed to the nines or dressed to the teeth.

A gig is 10 to the 9, so it does two operations in the length of time it takes light to get from one foot off the table down to the table. That's amazing.

因此光行进一英尺的,时间内电脑可以,进行两次基本运算,这太神奇了。

So,if your employer tells you to cut to the chase, be sure to get to the main point of your story quickly.

including laws to the Shebat, to the Sabbath to culture, to different aspects of life.

包括对于植树节，对于礼拜作出规定的教规,覆盖了文化以及生活的很多方面。

The idea is similar to the administration's four billion dollar Race to the Top competition to reform schools.

In the controversies that are leading up to the Licensing Act, one of the authors most frequently mentioned as posing a special threat to the well-being of the English nation is our very own Milton.

这些论战导致了《权利法》的出台，最常提到的对英国的繁荣富强有着特殊威胁的,作者之一就是弥尔顿。

With a fearless spirit I went to the place and got close enough to the ruined cabin to throw a stone against it.

And at the same time,we also need to cultivate the positive, to think more of the zero to the positive side of the equation as well.

同时，我们还需要培养积极性，探究如何让我们从零点升到正直,该如何做。

But now if a farmer cannot get to the slaughterhouse, the slaughterhouse may come to the farmer.

this is perhaps the most interesting thing because it forces us to show the complexity, to see the complexity, of semiotic relationships: a red light, just to return to the Christian holiday, a red light on a Christmas tree.

现在我们讲到了一个耐人寻味论点,这个问题迫使我们要思考，符号系统之间复杂的联系：,当我们再圣诞节时看到红灯，圣诞树上的红灯。

Grover Cleveland really was going to the White House -- ha ha ha! His election would bring some important changes to the country.

That brings us back to the opening, the descent to the Piraeus.

这将我们带回到开头首句，南降皮里亚斯。

Gold was discovered there. Treaties and religion meant nothing to the white miners who rushed to the Black Hills to search for gold.

Harmony is to the harp as the mind is to the body.

和声对于竖琴就像精神对于身体。

The team was to create the first map of the area and find a possible path to the top of the great mountain.

How do those differences between cells contribute to the properties of the tissues, which contribute to the properties of the organs, which contribute to the properties of a person and this maintenance of homeostasis?

这些差异化的细胞,是如何构成具有不同属性的组织,这些组织又构成具有不同属性的器官,器官又构成了不同的人,它们是如何维护内稳态呢

Outside the entrance to the harbor, on a dark night, they could be put into small boats and pulled by tugs to the fort.

And to the extent these portray an unrealistic or unfair or biased perception of the world we could construct stereotypes that are faithful to the data we're getting but the data is not representative.

因为媒体,没有真实，公平，不偏不倚地反映世界,我们的刻板印象,就会根据这些信息来形成,但这些信息并不能以一概全。