He tells me is a city boy, and this is his first time to live in a camp like this.
他说他是一个都市男孩,这是他第一次过这种野营生活。
This ran on an 'operating system' called DOS, produced by a then small company named Microsoft.
这种电脑采用了一种被称为磁盘操作系统(DOS)的工作程序,而这种程序是由当时规模不大的微软公司生产的。