grade.
n.(产品、材料的)等级，品级; (官衔的)级别; 职别; 成绩等级; 评分等级;
v.(按能力、质量、大小等将…)分级，分等，分类; 给…评分; 给…分数;
例句：Dust masks are graded according to the protection they offer.
防尘口罩根据它们的防护效果分等级。
扩展资料
Why get upset just because you got one bad grade?
何必因为一次成绩不好就想不开呢？
All the materials used were of the highest grade.
使用的材料全是优质品。
You get an A grade for scores of 75 and over.
75分及75以上的分数就是优等。
Your grade will be based on four papers and a final exam.
你的成绩将根据四篇论文和期末考试决定。
A high proportion of candidates get low or unclassified grades.
有很大一部分考生得分很低甚或不获评分。
