1、 grade
2、 He received a failing grade on the term paper、他的期末报告不及格。
3、 The teacher spent all weekend grading the children's papers、那位教师花了整个周末给孩子们的试卷打分数。
4、 The colors graded gradually from orange to yellow、这些颜色逐渐地从橙色变成黄色。
5、 The pearls are carefully graded、这些珍珠的等级分得很仔细。
6、 The twins will enter the fourth grade this fall、这对双胞胎今年秋季将升到四年级。