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	pithecanthropus pithecia pithecian pithecism pitheco pitheco- pithecoid pithecoidea pithecolobium pithecological pithecology pithecometric pithecomorphic pithecomorphism -pithecus pithecus pithecus pithed pith fleck pith helmet pithily pithiness pithing pithiviers pith knot

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。