英语翻译A man named Grant once found a box old papers in a room

英语翻译
A man named Grant once found a box old papers in a room at the top of this house.He burnt most of these.Grant did not like old things very much.But he kept a letter this time; at the botton of ot was the name of a well-known writer.
"When this letter was written" said Grant,"no one knew about this writer.But now everyone reads him.Some people like to buy letters like this.I may be able to get a lot of money for this letter if I sell it to eht right man."
But there were a lot of dirty marks all over the letter.Grant did not like these.
"It doesn't look nice." he though "No one will want to buy a letter if it's dirty.I'll have to clean it first."
So he took a piece of cloth and some water and started to work,with a lot of care.When at last he finished,the letter looked new.Grant was very pleased with what he had done.
He took the letter to a shop where old papers of this kind are bought and sold.
"I want to sell this letter",Grant said to the man in the shop"It was written by a famous writer.You know ablut these things.How much will you pay for it?' The man looked at the letter for a long time.
"I'll give you two pounds for it,"he said at last.
"Only two pounds!"said Grant,"but you should pay a lot more for a letter like this.And just look!I've even cleaned it so that it looks nice."
"I can see that,"said the man,"That's the trouble people who buy old papers like them to be true!"
翻译软件我用过了，错误率太高，就像下边的那个，能不能翻的通顺一点，

一旦发现一个名叫金一箱旧报纸,这家公司的高层房间.他烧毁其中大部分.金非常不喜欢旧东西.但他一直信这个时候; 在底的名字是优选著名作家."写这封信时说:"免、 "没有人知道这个作家.但现在大家看他.有些人喜欢买信件可能像this.i 得到了很多钱,如果我对这封信男权出售给东隧." 但有很多肮脏痕迹各地信.这些补助不喜欢."看来并不漂亮" 他虽"没有人会信,如果想买的dirty.i'当地有清洁第一" 他因而在一块布和一些水,开始工作,内部有很多终于care.when 他说完就新信件.金十分高兴他这样做.他把信铺在旧文件这种现买现卖."我想卖这家书",格兰特说该男子在店内"这是出自一位著名止损writer.you知道这些东西.多少 您是否支付?'男子看信了很久."我给你两磅 因为,"他说,在去年" 只有两磅!"金说,"但你应该付出更多的一封信这样.而刚刚看!我还清理它,使它好看.""我看到了,"他说,"那麻烦的人买 旧文件像它们是真实的!"