Class I类Iclassn.等级；阶级；阶层；班级；课；[生]纲；<口>出色的风度v.分类class D telephone丁类电话class subdivision类目复分class field tower类域塔class of exchange交换机种类class of services服务等级class information类信息classless society无阶级社会class of concrete混凝土等级Class' managementclassit aesthetic古典美