class D丁类classn.等级；阶级；阶层；班级；课；[生]纲；<口>出色的风度v.分类classified variable分类变量classified counting分类计算,分组计数classified grinding分级研磨classiried grinding分级研磨Class participation到课率class contradiction阶级矛盾classified research分类研究classified abstract分类文摘class-in-itselfn.自在的阶级Class -odd sports课余体育行为