Ucb
abbr. 单元控制部件（Unit Control Block）
🗣️ 情景例句
If you want my advice, I would...
依我看，……
Knowing something of everything, and everything of something.
通百艺而专一长。
It is much cheaper to post or email a long report than to fax it.
邮寄或电子邮递一封长篇报告比传真要便宜得多。