volcanic [volcan (←volcano) n. 火山；-ic→]a. ① of or caused by volcano火山的；由火山作用所引起的/ The Romans used a mixture of volcanic ash and slaked lime to build the Colosseum and the Pantheon.罗马人用火山灰与消石灰的混合物来建造圆型剧场与伟人祠。② like a volcano; liable to break out violently 火山似的；暴烈的/ Her husband was a cruel man with a volcanic temper.她丈夫生性残忍，脾气又暴躁。

下面，我们介绍几个由希腊词根与-ic构成的原生名词。

logic [ log = word, idea 字，思想；-ic=>“the art of selecting words or expressing ideas选择字句，表达思想的艺术”→]n. the science of reasoning or proof 逻辑学 / Logic is the science of gereral principlces of good and bad reasoning. 逻辑学是一门研究推理方法之优劣的基本原理的科学。

logical a. 逻辑（上）的；符合逻辑的

music [mus=Muse缪斯（掌管文艺、音乐等的女神之一）；-ic=>“the art by Muse 缪斯的艺术之一”→]n. the art of making beautiful and pleasant sounds 音乐 / The study of music deals with the principles of melody, harmony, rhythm, tempo and timbre. 音乐研究涉及到旋律、和声、节奏、速度与音色等方面的原理。

musical a. 音乐的；配乐的；和谐的；悦耳的

rhetoric [ rhetor = orator 演说家，雄辩家；-ic=>“the art of an orator 演说家的技巧”→ ] n. the art of using words so as to persuade others 修辞学 / Studying rhetoric can improve one's ability of speaking and writing. 学习修辞学能增进一个人的说话与写作的能力。

rhetorical a. 修辞学的

critic [crit = to judge 断；-ic→“a person who judges the arts 对学术作判断者”→]n. a person who makes judgements of merits and faults (of works of literature and art)(文艺)批评家，评论家 / What did the critics say in the newspaper about the new play?评论家们在报纸上对这出新戏是怎么说的？

critical a. 批评(性）的；苛求的 

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