cd的意思是:Compact Disc,光盘;Cd,元素镉(cadmiumCollision Detect,碰撞侦测;Carrier Detect,载波检测
[ˌsiː ˈdiː]
Compact Disc,光盘;Cd,元素镉(cadmiumCollision Detect,碰撞侦测;Carrier Detect,载波检测