Ucb
abbr. 单元控制部件（Unit Control Block）
🗣️ 情景例句
He's had so many colds and sore throats recently.
他最近常常感冒喉咙痛。
Excuse me. Are you Susan Davis from Western Electronics?
对不起，你是来自西方电子公司的苏姗·戴卫斯吗？
Many of the stars cannot be seen because they are too far away.
许多星星我们之所以看不见，是因为它们离我们太远。