Initialism of concrete masonry unit; a standard hollow concrete block.

• Used in building walls, partitions, and foundations.

“混凝土砌块”的英文缩写。

• 标准化的混凝土建筑砌块。

Initialism of Carnegie Mellon University, a private research university in Pittsburgh.

• Known for computer science, engineering, and the arts.

“卡内基梅隆大学”的英文缩写。

• 位于宾夕法尼亚州匹兹堡的私立研究型大学。