英语词汇perpetual motion怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	perpetual motion
释义	perpetual motionn. the motion of a hypothetical machine which once set in motion would run for ever unless subject to an external force or to wear 永恒运动
随便看	stone-dead stone-deaf stonefish stonefly stone fruit stoneground stonehatch stoneless stone marten stonemason stonemasonry stone parsley stone pine stone-pit stoner stone the crows stonewall stonewaller stonewalling stoneware stonewashed stoneweed stonework stoneworker stonewort

英汉双解词典包含94788条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。