grade levels信息详情
年级水平；地坪；均夷面；适用年级
levels───v.拉平，变平（level的第三人称单数形式）；n.水平，标准（level复数形式）；色阶调整；控制色阶
grade───n.年级；等级；成绩；级别；阶段；vi.分等级；逐渐变化；n.(Grade)人名；(英)格雷德；(法、德、西、葡、塞、瑞典)格拉德；vt.评分；把…分等级
levels avicii───航空水平
glucose levels───血糖水平；葡萄糖含量
levels of───…的水平；…的等级
levels crossword───水平纵横字谜
tripod levels───三脚架水平仪
hemoglobin levels───血红蛋白水平
bilirubin levels───胆红素水平
no grade levels and no homework.───整个学校没有年级划分，没有家庭作业。
me, grade levels would be based on height, not age.───我来说啊，年级应该按身高来划分，而不按年龄。
It was actually used for enriching uranium to weapons-grade levels.───实际上，它是用来将铀浓缩以制造武器。
The museum has a Teacher Institute and is working to help teachers improve science education at all grade levels.───博物馆有个教师协会，来帮助教师提高对各个年级的科学教育。
No statistically significant differences in the scores of the other three skill components among the subjects of the four grade levels.───其他三项技能组成的得分，在不同年级之间，则无显著差异存在。
W: Over the past year, we've had students progress up to four grade levels in their reading!───沃森：去年我们就有学生在阅读方面进步4级！
Some grammatical devices that are comparatively used more in spoken discourse show the trend of decrease with the increase of grade levels.───一些具有口语风格的衔接手段随着年级的升高有所减少，而词汇衔接手段则呈现出直线上升的趋势。
The members speaking at the lowest grade levels tend to be freshmen Republicans.───新当选的共和党议员们的讲话水平是最差的。
Yet only the reference errors and lexical errors show significant trend of decline with the increase of grade levels.───随着年级的升高，衔接错误的数量有显著不同，特别是在指代错误和词汇错误上。
Teacher after teacher recounted similar experiences at all grade levels.
These tests, called MCAS 10 tests, are given at different grade levels to assess the students' abilities in key learning areas.