1·If a source is readonly, a client can synchronize with its contents, but is not allowed to send changes to the server.
如果同步源为只读，那么客户端同步的时候是不能够改变服务端上同步源的内容。
2·Open the file in readonly mode.
打开文件在只读模式。
3·Even for a readonly application a global context is not a good choice because you probably want fresh data each time you query the application.
即使是一个只读的应用程序在全球范围内是不是一个好的选择，因为你可能每次都希望新的数据你查询应用程序。
4·Tell GDB not to trust readonly sections.
告知GDB 不要相信只读段。
5·READONLY. The name of the channel on which the call originated.
只读。呼叫发起方的通道的名称。