单词	ultra-
释义	ultra-ultra- /ʌltrə/ prefix Word Origin WORD ORIGINultra- Origin: Latin ultra ‘beyond’, from ulter; ➔ ULTERIOR Examples EXAMPLES FROM OTHER DICTIONARIES an ultramodern building ultraviolet light 1extremely:  an ultra-modern building He remained ultra-cautious. an ultra-light jacket2technical above and beyond something in a range:  ultrasound (=sound that is too high for humans to hear) → infra-
随便看	arch archaeological archaeologically archaeologist archaeology archaic archaism archangel archbishop Archbishop of Canterbury Archbishop of Westminster Archbishop of York archbishopric archdeacon archdiocese archduke archenemy archeology archer Archers, The archery archetypal archetype Archimedes Archimedes' principle

英语词典包含52748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。