All the materials used were of the highest grade.
使用的材料全是優質品。
You get an A grade for scores of 75 and over.
75分及75以上的分數就是優等。
Your grade will be based on four papers and a final exam.
你的成績將根據四篇論文和期末考試決定。
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獲評分。
About 10% of trainees fail to make the grade.
接受培訓的人大約有10%未達標。