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单词	bertrandite
释义	bertrandite noun ber·​trand·​ite ˈbər-trən-ˌdīt plural -s : a mineral Be4Si2O7(OH)2 consisting of a beryllium silicate occurring in hard colorless or pale-yellow prismatic crystals (hardness 6–7, specific gravity 2.59–2.60) Word History Etymology French, from E. Bertrand, 19th century Frenchman who first described it + French -ite
随便看	Alemanni Alemannic Alembert, d' alembic alembicate alembicated alembication alembics alembroth Alemán Alemán Valdés alencons alençon Alençon diamond aleph aleph-bet aleph-null alephs alepidote alepisauri Alepisaurus alepisauruses alepisaurusses aleppi aleppine

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。