Centos
abbr. 社区企业操作系统（Community Enterprise Operating System）
🗣️ 情景例句
at ten o'clock tomorrow morning.
明天上午十点钟。
One penny witgh right is better than a thousand without right.
合法得来一个钱，胜过非法钱一千。
he always insisted that it should be written out in full.
但他还是坚持要求将信的全文写在信纸上。