graders 是 grader 的复数graderKK [ˋgredɚ] /ˈɡɹeɪdɚ/发音名词1评分者、阅卷者、改考卷的人美式The professor hired two graders to help with the midterm exams.教授雇了两名阅卷者协助批改期中考。2年级学生美式,多用于复合词My niece is a fifth grader at the school down the street.我姪女是街尾那所学校的五年级学生。3平路机、整平机工程A grader smoothed the dirt road before the crew laid asphalt.工人铺柏油前,先用平路机把土路整平。4分级机、筛选机机械The packing house uses a grader to sort apples by size.包装厂用分级机依大小把苹果分类。用这个字练口说→