单词	unidentified flying object
释义	unidentified flying object noun plural unidentified flying objects : a mysterious flying object in the sky that is sometimes assumed to be a spaceship from another planet The Peking Evening News said today that it was swamped with telephone calls from people reporting an "unidentified flying object" over the city. The bright round object spotted yesterday turned out to be a research balloon reflecting the sunlight, the newspaper said. The New York Times called also UFO Word History First Known Use 1947, in the meaning defined above
随便看	lithographies lithographing lithographs lithography lithogravure lithoid lithoidal lithoing Lithol lithologic lithological lithologically lithologies lithologists lithology lithomancies lithomancy lithomancyes lithomancys lithomarge lithometeor lithomorphic lithonates lithontriptic lithontriptics

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。