单词	crystal system
释义	crystal system noun : any of the six or sometimes seven main groups into which crystals are commonly classified according to the relative lengths and inclinations of their axes or according to their respective symmetries see hexagonal system, isometric system, monoclinic system, orthorhombic system, rhombohedral system, tetragonal system, triclinic system, trigonal system Word History First Known Use 1847, in the meaning defined above
随便看	tropisms tropistic tropists tropo tropo- tropocollagen tropocollagens tropological tropologically tropologies tropology tropolone tropometer tropomyosin tropomyosins troponin troponins troponymies troponyms troponymyes troponymys tropopause tropopauses tropophil tropophilous

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