/klæs/ n.班级；（一节）课，上课时间；（某一科目的）课程；阶级，阶层；等级划分，等级制度；（货物、服务或人的）等级，类别；（飞机、火车等的）舱位等级，车厢等级；品味；同届毕业生；<英>（英国大学的）学位等级；（生物）（植物或动物分类的）纲；（比赛的）组别 v.把……归类，把……看作；把……编入某一班级；属于……类（或等级），被列为某类（或某级） ADJ A world-class athlete, performer, or organization is one of the best in the world. 世界级的 He was determined to become a world-class player. 他下决心要成为一名世界级选手。 AJD If you describe something or someone as first-class, you mean that they are extremely good and of the highest quality. 一流的 The food was first-class. ADJ if someone treats you as a second-class citizen, they treat you as if you are less valuable and less important than other people. 二等的 Too many airlines treat our children as second-class citizens. 太多航空公司把我们的孩子当作二等公民对待。 classroom /ˈklæsruːm/ scotch tape 胶带, drawing pins 图钉, pencil, school bag, textbooks, rubber 橡皮, clips 曲别针, pencil case~ pencil box, magnifying glass 放大镜, pencil sharpener 卷笔刀, stapler 订书器, ruler, hole puncher, compass指南针, calculator 计算器, scissors 剪刀, notebook, ballpoint 圆珠笔, coloured pencils 有颜色的铅笔 What can you do with tape?