单词	sporadic E layer
释义	sporadic E layer noun : a layer of ionization occurring irregularly within the E region of the ionosphere Word History First Known Use 1949, in the meaning defined above
随便看	breadstuffs breadth breadth extreme breadth molded breadthen breadthless breadthrider breadths breadths molded breadthways breadthwayser breadthwaysest breadthwise breadthwiser breadthwisest breadwinner breadwinners breadwinning breadwinnings bready break break (one's) stride break (with) precedent break a leg break a sweat

英语词典包含469781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。