Everyone knows that if you try to access a page that doesn't exist, the server will throw you back 404 page not Found, or if you mess up your rails code, you will get a 500 Application Error.
每个人都知道如果打开一个并不存在的页面，服务器会返回一个404错误页面。如果你的Rails程序出错了，会返回一个500应用程序内部错误的页面。
As a result, if someone comes across an error (for example, a 404 page Not Found, 403 Forbidden, or 500 Internal Server error), he will only see an ugly error code page.
因此，如果某人遇到一个错误(例如，404PageNot Found、403 Forbidden或500InternalServer Error等错误)，他将看到一个难看的错误代码页面。
The remote server returned an error: (404) Not Found.
远程服务器返回错误：(404)未找到。
The most common error page is the HTTP 404 "Not found: The requested URL/whatever. html was not found on this server."
当输入的URL或者网址未被找到时，经常出现的错误页面是HTTP404“未找到”页面。
Error code: 404 The requested URL was not found on this server, please contact with your system administrator.
错误代码：404您访问的地址或文件不存在，请联系您的系统管理员。
Error code: 404 The requested URL was not found on this server, please contact with your system administrator.
错误代码：404您访问的地址或文件不存在，请联系您的系统管理员。
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