把这一段话翻译成英语，急！！！



实验证明，磁铁烧红后，它就失去了磁性。这是什么道理呢？
要想把这个道理说清楚，首先要知道，铁磁性材料为什么会有磁性？
从物质构成来讲，一切物质都是由它的分子组成的。分子又是由原子组成的。原子又是由原子核和电子组成的，而电子在不停地自转和绕原子核旋转，电子的这两种运动都会产生磁性。但是，由于它们运动的方向各自不同、杂乱无章，使物质内部的磁效应相互抵消。因此，物质在正常情况下，并不呈现磁性。
但是，在外界的磁场作用下，铁、镍、钴铁磁材料内部本来各自运动的电子，一个个好像训练有素的战士一样，听到"立正--向右看齐"的口令，就唰地一下排得整整齐齐，这时，电子旋转运动产生的磁效应，与外界磁场方向一致，这些物质就呈现出磁性。而铜、铝、铅等等非铁磁材料中的电子，尽管外加再强的磁场，却好像一群不听话的顽皮孩子，不肯听从"口令"而"整齐列队"，仍然自由自在地在杂乱运动着，所以也就没有磁性。
磁铁之所以能吸引铁钉，就是因为具有磁性的磁铁在靠近铁钉时，磁铁的磁场使铁钉磁化，相互间产生吸引力，铁钉就牢牢地与磁铁"粘"在一起了。
但是，当磁铁和磁石的温度升高时，它们内部的分子热运动越来越快。于是，越来越多的电子不肯听从"列队"的"口令"了。当温度升高到某个数值时，剧烈的分子热运动，终于完全破坏了电子运动的方向的规律性，磁铁的磁性也就消失了。金属学家把磁铁和磁石完全消失磁性的温度称为"居里温度"。钢铁的居里温度是770℃。
现在，你该知道，烧得通红的磁铁为什么吸不牢铁钉的道理了。因为烧得通红的磁铁，一般温度已超过800℃。当然，在温度下降后，我们如果重新给磁铁充磁，它还是能重新"工作"起来的。

Experimens prove that when a magnet is red hot, it loses its magnetism. Why is that?
Before making attempts to explain this point clearly, we must first know why there is magnetism in ferromagnetic materials.
We begin by talking about the formation of a material. All materials are formed by their own molecules. Molecules, in turn, are composed of atoms. Atoms are in turn formed by their nuclei and the electrons, which constantly spin on their own and rotate around the nuclei; both electronic movements could cause magnetism. However, since the directions of their movement are different and disordered, the internal magnetic effects of the materials offset each other. Therefore, the materials under normal circumstances do not show magnetism.
However, in the effect of external magnetic fields, the electrons in ferromagnetic materials such as iron, nickel, and cobalt, which are originally moving freely, become more like the well-trained soldiers. Having heard the order "Stand still - look to your right", they stand neatly in a row. At this time, the electronic rotary movements produce magnetic effect, whose direction is consistent with that of the external magnetic field, and the materials show magnetism. While electrons in non-ferromagnetic materials such as copper, aluminium, lead, etc., despite the presence of an even stronger external magnetic field, seem to be a group of naughty, disobeying children, who refuse to obey the "order" and "neatly line up", but still moving freely in an orderless manner, and therefore the materials do not exhibit magnetism.
The reason that a magnet is able to attract nails, is because the magnet, with magnetic properties, when approaches the nails, magnetizes the nail with an external magnetic field produced by the magnet, and produces a mutual attraction, so that the nails firmly "stick" to the magnet.
However, when the temperatures of the magnets and magnetic materials rise, the internal thermal motion of their molecules become ever faster. Thus, a growing number of electrons refuse to obey the "line-up" order. When the temperature rises to a certain value, the dramatic molecular thermal movement finally completely destroys the regularity of the directions of electronic movements, and the magnetic properties of magnets will disappear. Metallists call the temperature at which the magnetic property of magnets and magnetic materials completely disappears the "Curie temperature. The "Curie temperature" of iron and steel is 770 ℃.
Now, you should know why the red-hot magnets could not firmly attract nails. It's because generally, the temperature of red-hot magnets is over 800 ℃. Of course, if when the temperature drops, we re-magnetize the magnet, it will be able to restart "working".