[計] UNIX操作系統(tǒng) (unix operating system 的復數(shù)) unix operating system: unix操作系統(tǒng)operating systems: 漫談操作系統(tǒng)alternating operating systems: 替供選用的操作系統(tǒng)diskette operating systems: 軟磁盤操作系統(tǒng)distributed operating systems: 分布式操作系統(tǒng)下載手機詞典可隨時隨地查詞查翻譯