Ucb
abbr. 單元控制部件（Unit Control Block）
??? 情景例句
If you roughhouse with a cat, you're going to get scratched.
如果你喜歡和貓嬉戲，可能會被爪子抓傷。
Never (or Don't) trouble trouble till trouble troulbes you.
切莫自尋麻煩。
A yellow light on the dashboard flashed angrily and Bruce cheerfully announced that there was no oil in the engine!
儀表盤一盞黃燈閃著刺眼的光芒，布魯斯興致勃勃地宣布發動機里沒油了！