lessonn.教训;课,功课,课业;榜样,典范vt.教训,告诫,训斥;给 ... 上课
lessons about life生命教育
lesson of the past过去的教训
lesson examination课程考试
Lesson explanation说课
Lesson preparation备课
lesson of accident事故教训
Lesson's Seedeater费用分类
lesson in chemistry化学课
lessons of database数据库课程
lesson presentation说课