Ucb
abbr. 单元控制部件（Unit Control Block）
🗣️ 情景例句
You're welcome.
别客气，欢迎你再来。
Good counsel never comes amiss.
忠言有利无害。
I had expected to be near my objective by now, but everything still seemed alien to me.
我本想离目的地已经不远，但周围一切对我仍很陌生。