英语翻译Some inventions are so useful,but seem so simple,that we

英语翻译
Some inventions are so useful,but seem so simple,that we wonder why no one thought of them long ago.Post-it Notes,the pieces of paper that you can fasten almost anywhere and then remove without leaving any sign that they were there,are an example of such an invention.
　　Post-it Notes were invented about twenty years ago by Art Fry,a scientist at 3M Corporation.The idea for the product came from a frustrating experience he often had while singing in his church choir.Fry used pieces of paper as bookmarks to mark the places in his book of songs,but these bookmarks were always falling out.He knew he needed a bookmark that would stay where he put it,but that he could remove without damaging the pages.
　　Around that time,Fry heard about a new adhesive (粘合剂) that a colleague(同事),Dr.Spence Silver,had created.This adhesive was special because it was sticky,but not too sticky.It was strong enough to hold papers together,but weak enough to not tear the paper when it was removed.Fry saw that the new adhesive could help solve his bookmark problem.One morning,Fry put some of the adhesive on the edge of a piece of paper.Just as he hoped,it made a perfect bookmark.
　　A short time later,Fry realized that his new invention had even more uses than being a great bookmark.He came to this realization when he wrote a note on one of his new "bookmarks" and attached it to a report he was going to give to a colleague.Soon,co-workers were asking Fry for more samples(样品) of his invention so that they could use the new type of notes themselves.
　　Fry and some other people at 3M believed so much in the new product that they persuaded the company to give away thousands of the "sticky pieces of paper" for trial use(试用).When some salespeople at 3M went to offices and showed workers just how helpful the new type of notes could be,they immediately received many orders.As more and more people discovered how useful Post-it Notes could be,the product took off.

有些发明是非常有用的,但是看起来那么简单,那我们不知道为什么没有人想到他们很久了.便签纸,纸的碎片,你可以把几乎任何地方然后删除没有留下任何迹象表明他们在那里,有这样一个发明的一个例子.
后注意到大约二十年前发明的艺术炒,在3M公司的科学家.对产品的想法来自一个令人沮丧的经验,他常常在他的教堂唱诗班唱歌.用纸片炒书签在他的书中的歌曲的地方标记,但这些书签总是脱落.他知道他需要一个书签会待在他把它,但他不损害可以删除页面.
在那个时候,炒听说有一个新的粘合剂（粘合剂）,一个同事（同事）,斯彭斯博士的银,创造了.该粘合剂特别因为它粘粘的,但不要太粘.它的强度足以把文件放在一起,但足够弱不撕纸的时候,它被删除.看见新的胶粘剂炒股可以帮助解决他的书签的问题.一天早上,炒放一些在一张纸的边缘粘合.正如他所希望的,它使一个完美的书签.
不久之后,炒意识到他的新发明更多的用途不是一个伟大的书签.他逐渐意识到他写了一张纸条的时候,他的一个新的“书签”和把它附在一个报告,他要给一个同事.很快,同事问煎更多的样品（样品）他的发明,以便他们可以使用自己的新类型的注释.
鱼苗和3M的另一些人认为太多,他们说服公司给了成千上万的“试用纸粘片的新产品（试用）.当一些销售人员在3M去办公室和显示是如何帮助工人的新型笔记可以,他们立即收到了很多订单.随着越来越多的人发现它注意到有用的帖子可以起飞,产品.