class 含义广泛，指人或物按优劣划分的等级，也指学校中的年级或班级。
degree 指程度、范围不同，社会地位的高低。也可指形容词或副词的级。
grade 指按地位或优劣划分的等级，既可指人又可指物。
rank 指人在社会中的地位或等级，尤指军队中的军衔。
参考例句
1. Bachelor Degree and above. 学士学位及以上。
2. They differ in degree but not in kind. 他们是程度不同， 而不是性质不同。
3. Can glasses of scorch of good eyesight intelligence reduce degree? 好视力智能变焦眼镜能不能降低度数啊？
英英解释
n.
1. a position on a scale of intensity or amount or quality
2. a specific identifiable position in a continuum or series or especially in a process
3. an award conferred by a college or university signifying that the recipient has satisfactorily compl
4. a unit of temperature on a specified scale
5. a measure for arcs and angles
6. the highest power of a term or variable
7. the seriousness of something (e.g., a burn or crime)
