产品经过检查并根据质量进行分级。

The products are inspected and then ___graded according to their quality.

教师根据详细的评分标准对学生的作业进行分级。

Teachers ___grade student assignments based on a detailed rubric.

公司采用复杂的系统每年对员工的表现进行分级。

The company employs a complex system to ___grade employees' performance on an annual basis.