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grade什么意思?速度

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grade什么意思?
速度
n.等级,级别;成绩;年级 vt.分等;评分
grade 1
/ greɪd; ɡred/ n
step,stage or degree of rank,quality,etc; level of classification (官阶、 质量等的)等级,品级; 阶段; 程度:a person's salary grade,ie level of pay 某人的薪金级别 * [attrib 作定语] high/low-grade civil servants,milk,pigs,materials 等级高[低]的公务员、 奶品、 猪、 材料 * Grade A potatoes are the best in quality.甲等马铃薯是质量最好的.
(a) mark given in an examination or for school work (考试或作业的)分数,评分等级:Pupils with 90% or more are awarded Grade A.满90分的学生评为甲等.* She got excellent grades in her exams.她考试成绩优异.(b) level of (esp musical) skill at which a pupil is tested (学生受测试的)技巧水平(尤指音乐方面):He's got Violin Grade 6,ie has passed a test at that level of skill.他的小提琴6级考试及格了.
(US) division of a school based on the age of the pupils; pupils in such a division 年级; (按年级划分的)小学生:My son's in the third grade.我儿子上小学三年级.
(US) = gradient.
(idm 习语) make the `grade (infml 口) reach the required or expected standard; succeed 达到要求的或预期的标准; 成功.on the `up/`down grade getting better/worse 逐渐好转[恶化]:Business is on the up grade.生意日渐兴隆.
# `grade crossing (US) = level crossing (level1).
`grade school (US) = primary school (primary).
`grade teacher (US) teacher in a grade school 小学教师.grade 2
/ greɪd; ɡred/ v
[esp passive 尤用於被动语态:Tn,Tn.pr,Cn.n] sth/sb by/according to sth; sth/sb from sth to sth arrange sth/sb in order by grades or classes,ie assessed and marked with the standard or grade obtained 将某事物[某人]按级分类或分等:The potatoes are graded by/according to size.马铃薯按大小分等级.* Eggs are graded from small to extra-large.鸡蛋从小的到特大的分成了等级.
[Tn,Cn.n] (esp US) mark (written work); give (a student) a mark 给(书面作业)评分; 给(学生)分数:The term papers have been graded.期末考卷已评完分数了.* A student who gets 90% is graded A.凡得90分的学生列为甲等.
[Tn] make (land,esp for roads) more nearly level by reducing the slope (用削减斜度的办法)使(地面,尤指路面)接近水平.