| 单词 | 学成 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔A level〕She got an A in her A levels in maths, physics, and chemistry.在高级证书考试中，她的数学、物理和化学成绩都是A。韦氏高阶〔CONSIST OF〕What is the chemical composition of lava? 熔岩的化学成分是什么？朗文写作活用〔CP〕Chemically pure.化学成分纯净的美国传统〔FAIR〕The students’ goals in the protest seem so reasonable that the university is setting up a committee to consider them. 这次抗议活动中学生提出的要求很合情合理，因此大学成立了一个委员会加以考虑。朗文写作活用〔LAST〕The classes consist of immigrants, and students who will return to their home countries at the end of the course. The latter group are preparing for the Cambridge Proficiency Certificate. 这些班级由移民学生和学成后要回国的学生组成。后者正在准备剑桥英语能力证书考试。朗文写作活用〔PART〕Magnesium and sodium are the main constituents of salt. 镁和钠是盐的基本化学成分。朗文写作活用〔PART〕Scientists have to break the compound down into its constituents in order to analyze it. 科学家为了进行分析，必须把化合物分解成它的化学成分。朗文写作活用〔S level〕She got an A in her S levels in math, physics, and chemistry.在特级证书考试中，她的数学、物理和化学成绩都是A。韦氏高阶〔achievement〕The discovery of DNA was a major scientific achievement.*DNA的发现是一项巨大的科学成就。韦氏高阶〔ahead of〕Henry generally stayed ahead of the class in maths.亨利的数学成绩通常比班里的其他同学好。外研社新世纪〔attainment〕Her scientific attainments have made her quite well-known in the field of biology.她的科学成就使她在生物学界相当知名。韦氏高阶〔behind〕Mark's always behind the rest of his class in mathematics.马克的数学成绩总是落在班上其他同学后面。朗文当代〔bottom〕I was always bottom of the class in math.我的数学成绩总是班上最后一名。牛津高阶〔bottom〕I'm at the bottom of my class in maths.我的数学成绩在班里垫底。外研社新世纪〔chemistry〕The patient's blood chemistry was monitored regularly.那名患者的血液化学成分受到了定时的监测。牛津高阶〔college〕In 1854, Cheltenham Ladies' College became the first girls' public school.1854年，切尔滕纳姆女子中学成为第一所女子公学。柯林斯高阶〔composition〕Irradiation changes the chemical composition of a spice.辐照会改变香料的化学成分。牛津搭配〔composition〕Some minerals have complex chemical compositions.有些矿物的化学成分很复杂。朗文当代〔concentration〕An investigation found high concentrations of cancer-causing chemicals on the property.一项调查发现该建筑含有大量致癌的化学成分。麦克米伦高阶〔constitution〕What's the chemical constitution of the dye? 这种染料的化学成分是什么？朗文当代〔disequilibrium〕The condition is caused by a disequilibrium in the brain's chemistry.这种疾病是由大脑的化学成分失调引起的。韦氏高阶〔exponent〕She is a famous exponent of self-education.她是自学成材的著名典型。英汉大词典〔fraction〕A chemical component separated by fractionation.分馏：被分馏出的化学成分美国传统〔f〕He got(an) F/‘F’ in/for Chemistry.他的化学成绩不及格。牛津高阶〔get by〕He's doing very well in his history classes, but he's barely getting by in math.他的历史课成绩很好，但数学成绩勉强通过。韦氏高阶〔imbalance〕An imbalance in certain chemicals leads to disturbances in the brain's function.某些化学成分失衡会导致大脑功能紊乱。牛津搭配〔imbalance〕Chemical imbalances actually cause the sleep disturbances.这些睡眠障碍其实是由体内化学成分失衡引起的。牛津搭配〔independent〕We're going independent from the university and setting up our own group.我们即将脱离大学成立自己的团体。外研社新世纪〔infantilism〕I persisted in asking to be taught adult French and did get fewer infantilisms.我坚持要求学成人法语,结果也的确少学了些小儿用语。英汉大词典〔lick〕She always licks me at math.她的数学成绩总是比我好。外研社新世纪〔metasomatism〕The process by which the chemical composition of a rock is changed by interaction with fluids; replacement of one mineral by another without melting.交代变化，换质（作用）：岩石的化学成分通过与液体相互作用而发生变化的过程；一种矿物不经熔化被另一种矿物替代美国传统〔microanalysis〕The chemical identification and analysis of extremely small quantities of matter.微量分析：对于极其微量物质的化学成分测定及分析美国传统〔nationally〕She ranks high nationally in her math and science scores.她的数学和自然科学成绩在全国名列前茅。韦氏高阶〔paleobiochemistry〕The biochemical constituents of fossil organisms.有机生物化石构成的生物化学成分美国传统〔paramorphism〕Structural alteration of a mineral without change of chemical composition.同质异晶（现象）：一种化学成分不改变的矿物结构的变形美国传统〔peer〕American children did less well in math than their peers in Japan.美国儿童的数学成绩比不上日本的同龄儿童。朗文当代〔petrochemistry〕The branch of geochemistry that deals with the chemical composition of rocks.岩石化学：研究岩石的化学成分的地球化学的分支美国传统〔phytochemical〕A nonnutritive bioactive plant substance, such as a flavonoid or carotenoid, considered to have a beneficial effect on human health.植物性化学成分，植物化学物质：非营养生物活性的植物成分，如类黄酮或胡萝卜素，被认为有益人类身体健康美国传统〔proficiency〕He made little proficiency in literary accomplishments.他在文学成就方面进步甚少。英汉大词典〔qualitative analysis〕The testing of a substance or mixture to determine its chemical constituents.定性分析：确定一种物质或混合物的化学成分的化验美国传统〔quantitative analysis〕The testing of a substance or mixture to determine the amounts and proportions of its chemical constituents.空量分析：对某种物质或混合物的测验，以确定其化学成份的数量和比例美国传统〔rubber〕Any of numerous synthetic elastic materials of varying chemical composition with properties similar to those of natural rubber.合成橡胶：具有不同的化学成分的各种有弹性的合成原料，其属性与天然橡胶类似美国传统〔score〕There was also a strong link between children's low maths scores and parents' numeracy problems.子女的数学成绩差与父母算术不好密切相关。外研社新世纪〔score〕There was also a strong link between children's low maths scores and parents' numeracy problems.孩子数学成绩差也与父母算术不好密切相关。柯林斯高阶〔self-taught〕Having taught oneself without formal instruction or the help of others.自学的：没有正式的指导或他人的帮助而自学成材的美国传统〔self-taught〕Most of these artists are self-taught.这些艺术家绝大部分是自学成材的。剑桥高阶〔self-taught〕She received some education at night school, but was largely self-taught.她在夜校接受过一些教育，但主要是靠自学成材。朗文当代〔set〕Adam's in the top set for maths.亚当在数学成绩最好的一班学生中。朗文当代〔seventy〕All his grades in mathematics are in the seventies.他的数学成绩全是70多分。英汉大词典〔transcript〕You must submit your college transcript with your job application.你递交求职申请时必须附上大学成绩单。韦氏高阶〔x-disease〕Hyperkeratosis of cattle caused by ingestion of a toxic substance, especially one of uncertain origin or chemical composition.X病：由于摄取某种有毒物质而引起的牛的皮肤角化过度，尤指一种起因和化学成分不明的物质美国传统After junior high school he went to a trade school, where he learned to be an auto mechanic.初中毕业以后，他上了中等技术学校，在那里他学成为一名汽车修理工。剑桥国际Organic vegetables are completely free of preservatives and other chemicals.用有机肥料培植的蔬菜完全不含防腐剂和其他化学成分。剑桥国际Special chemicals prevent cigarettes from going out (= stopping burning) once they're lit.特殊的化学成分使香烟在点燃之后不会熄灭。剑桥国际These bullets contain a special chemical which glows brightly as the bullets fly through the air, indicating the path they have taken.这些子弹含有特殊的化学成分使它们在空气中飞行时能闪闪发光以确定弹道。剑桥国际 |
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