Mdm
abbr. 工程数据管理（Master Data Management）；维修诊断手册（Maintenance Diagnostic Manual）
🗣️ 情景例句
He emphasized that Marxism was scientific truth.
他指出马克思主义是科学的真理。
A miss is as good as a mile.
失之毫厘，差之千里。
How old is he?
他多大年纪了？