写一件东西的发明的英语作文带翻译

I believe that everyone is all too familiar on paper, because the need to use every day. However, the one before us a clean slate, we all know, do and how is it made of? Today, when I was a little guide for everyone who introduced.
According to legend, in BC 105 yuan, Cai Lun successfully invented papermaking, paper predecessors, he summed up the experience, through trial and error, with the bark, hemp, rags, old fishing nets and other materials through the down of ramming, copy, arch, etc. 72 craft, and finally made a practical fiber paper was called Caihou paper. This kind of paper on the reform and promotion of papermaking have much to contribute.

Later, the continuous development of papermaking, another left-Bo paper, rattan paper, through continuous improvement, and finally became the white we are now common.

After the above introduction I papermaking, we all have a certain understanding on paper, right? During this presentation, I realized the wisdom of the ancients, papermaking is one of the crystallization of their labor; the same time, I would like to remind you, paper hard-won, and we have to cherish to use it.
汉译：我相信，大家对纸是再熟悉不过了，因为每天都需要用到。可是，摆在我们面前的一张张白纸，大家都知道它是怎样做成的吗？今天我就当个小解说员，给大家介绍介绍。　　
　　相传，在公元前105元，蔡伦成功地发明了造纸术，他总结了前人造纸的经验，经过反复试验，用树皮、麻绳、破布、旧鱼网等原料经过挫、捣、抄、拱等72道工艺，终于做出了实用的纤维纸，当时称做“蔡侯纸”。这种纸对改革和推广造纸术有很大贡献。　　
　　后来，造纸术不断发展，又有了左伯纸、藤纸，经过不断改良，终于成了我们现在常见的白纸。　　
　　经过以上我对造纸术的介绍，大家都对纸有一定的了解了吧？在这段介绍中，我体会到了古人的智慧，造纸术也是他们的劳动结晶之一；同时，我还要提醒大家，纸来之不易，我们大家要好好珍惜使用它。