grade的一般过去时为：graded...

post-graduate的音标：post-graduate的英式发音音标为：['pəʊstɡr'ædʒʊeɪt]post-graduate的美式发音音标为：['poʊstɡr'ædʒʊeɪt]...

degrade的近义词有：humble, humiliate, degrade, disgrace。下面这些动词均含有"使丢脸，使受耻辱"的含义：humble常可和degrade换用，强调降级所带来的耻辱；也多指自卑和感到渺小无能的心理状态。humiliate：指损伤或剥夺自尊感，损坏自尊心，强调蒙受耻辱。degrade：指因过失而受到降级、阶格；也多指因自身的境遇而感到耻辱。disgrace：指降低某人在他人心目中的地位，使其丢脸。...

Dibenzofuran ( DF ) is one of the model compounds for the study of biodegradation of dioxin - like pollutants.二苯并呋喃 ( DF ) 是研究二英类化合物生物降解的模式化合物之一.The experimental results show that the biodegradation of dinoseb is the mor...

degradations的音标：...

n.间渡（过程），逐渐融合（过程），中间形式，过渡形式...

formgrader的音标：formgrader的英式发音音标为：[fɔ:mɡ'reɪdər]formgrader的美式发音音标为：[fɔmɡ'reɪdər]...

gradate的现在进行时为：gradating...

v.（使）逐渐转化，顺次排列( gradate的第三人称单数 )...

n.生物降解...

lowgrade的音标：lowgrade的英式发音音标为：[laʊɡ'rɑ:d]lowgrade的美式发音音标为：[laʊɡ'rɑd]...

Environmentalists are keen on degradable materials.环保分子特别喜爱能够自然分解的材料.Starch - based biodegradable plastics is a kind of important degradable polymer material.淀粉基生物降解塑料是一种重要的可降解高分子材料.Phosphate ester polymers are degradabl...

adj.向后的，退化的，恶化的，次序颠倒的vi.逆行，倒退，退步vt.使倒退vi.倒退地，向后地...

gravigrade的音标：gravigrade的英式发音音标为：[ɡrævi:ɡ'reɪd]gravigrade的美式发音音标为：[ɡræviɡ'reɪd]...

grade的近义词/同义词有：incline, hill, slope, gradient, sort, place, rank, group, arrange, rate, classify, classify, slope, group, rank, degree, incline, classification, assort, arrange, form, rate, hill, descent, status, place, ...

retrograde的第三人称单数（三单）为：retrogrades...

n.（从一事物到另一事物的）渐变( gradation的名词复数 )，（事物划分的）阶段，等级，刻度...

adj.研究生的n.研究生...

gradient的复数形式为：gradients...

The timber is graded according to its thickness.木材按厚度分级.The method of graded dichotomies enables this to be done.用等级均分法可以做到上述那一点.The texts should be graded in order of difficulty.课文要按难易程度编排.We xeroxed thirty sample essay...

isograde的音标：isograde的英式发音音标为：[aɪsəʊɡ'reɪd]isograde的美式发音音标为：[aɪsoʊɡ'reɪd]...

中缓步目...

graduates的音标：...

等变质级...

upgrades的音标：...

Children graduate to the kindergarten, then pre-school, and then school.孩子们先上幼儿园，然后上学前班，再接着上小学。In practice a graduate tax is an administrative nightmare.毕业税具体操作起来不啻一场行政噩梦。Chicago has 6 graduate and professional schools o...

gradate的音标：gradate的英式发音音标为：[grə'deɪt]gradate的美式发音音标为：['greɪdeɪt]...

bullgrader的音标：bullgrader的英式发音音标为：[bʊlɡ'reɪdər]bullgrader的美式发音音标为：[bʊlɡ'reɪdər]...

centigrade的音标：centigrade的英式发音音标为：['sentɪgreɪd]centigrade的美式发音音标为：['sɛntɪˌɡred]...

grader的音标：grader的英式发音音标为：['greɪdə(r)]grader的美式发音音标为：['ɡreɪdər]...