Ucb
abbr. 单元控制部件（Unit Control Block）
🗣️ 情景例句
She has to work late tonight.
她今晚得工作得晚一些。
I think gray hair makes you look rather distinguished.
我觉得你灰白的头发使你看上去很严肃。
A burst of activity associated with the laying of submarine cables soon confirmed the Challenger's observation that many parts of the ocean were two to three miles deep,
海洋中很多地方可深达两三英里，