noun🔗Share平地机， 推土机 A machine used in road maintenance and construction for leveling large surfaces."The grader flattened the uneven patch of dirt in the backyard. "平地机把后院那块凹凸不平的泥地压平了。machinevehicletechnologybuildingindustryChat with AIVocabulary GamePractice Reading
noun🔗Share评分员，阅卷人 One who grades, or that by means of which grading is done or facilitated."The teacher is the grader for all the students' math quizzes. "老师是所有学生数学测验的阅卷人。educationjobmachineChat with AIVocabulary GamePractice Reading
noun🔗Share年级学生 (in combination) One who belongs to a certain grade at school."a first-grader"一年级学生educationpersonChat with AIVocabulary GamePractice Reading
