英语词汇“perpetual motion”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	perpetual motion
释义	perpetual motion n. The hypothetical continuous operation of an isolated mechanical device or other closed system without a sustaining energy source.
随便看	imprecate imprecation imprecator imprecatory imprecise imprecisely imprecision impregnable impregnable impregnably impregnate impregnation impregnator impresa impresario impress impress impressibility impressible impressibly impression impressionability impressionable impressionism impressionist

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。