英语词汇“perpetual day”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	perpetual day
释义	perpetual day noun : the period of nearly six months alternately at the earth's north and south poles when the sun does not set — compare perpetual night
随便看	alveolar artery alveolar canals alveolar ducts alveolariform alveolar index alveolaris alveolarly alveolar passages alveolar point alveolar process alveolar ridge alveolar surface alveolar theory alveolary alveolate alveolation alveole alveolectomy alveoliform alveolite alveolites alveolo alveolo- alveolocondylean alveolonasal

英语词典包含332784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。