graded standard sand

例句：

1. 1. The students were graded basedon their performance in the exams.
   学生们根据他们在考试中的表现被分级。
2. 2. Thecompany has a strict policy for gradedemployees.
   公司对员工实行严格的分级政策。
3. 3.The team was graded by the coachbased on their performance during the game.
   教练根据队员们在比赛中的表现进行了分级。