Ucb
abbr. 单元控制部件（Unit Control Block）
🗣️ 情景例句
Certainly. What time would you like?
好的，要几点叫你？
What have you done?
你究竟都做了些什么？
He was on his way to a lecture, when a tourist stopped him and asked him for directions.
他走在去听课的路上，此时一位游客拦住他问路。