Ucb
abbr. 单元控制部件（Unit Control Block）
🗣️ 情景例句
If you roughhouse with a cat, you're going to get scratched.
如果你喜欢和猫嬉戏，可能会被爪子抓伤。
Never (or Don't) trouble trouble till trouble troulbes you.
切莫自寻麻烦。
A yellow light on the dashboard flashed angrily and Bruce cheerfully announced that there was no oil in the engine!
仪表盘一盏黄灯闪着刺眼的光芒，布鲁斯兴致勃勃地宣布发动机里没油了！