英语词汇“rock crystal”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	rock crystal
释义	rock crystal n. Colorless transparent quartz, used in optical instruments and as a semiprecious gemstone.
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英语词典包含135693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。