Ucb
abbr. 单元控制部件（Unit Control Block）
🗣️ 情景例句
Table tennis, I suppose. That's almost our national game. People from all walks play it.
我想应该是乒乓球吧。它几乎是全国性运动，各行各业的人都打。
Tractors have revolutionized farming.
拖拉机使耕作有革命性的变化。
Time is up.
时间快到了。