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 instruction课堂教学class perspective阶级视角class observation课堂观察class supervision级别管辖classified voting分类表决classified weight分类权重class b modulator乙类灯器classifier design分类器设计classes of cities城市类型class programming类程序设计