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n.激光[镭射]唱片,光盘; 变形: 复数:CDs 英英释义: CD[ ,si: 'di: ]n.a soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores同义词:cadmiumatomic number 48the basic unit of luminous intensity adopted under the Systeme Internati