单词	um
释义	umum /ʌm, əm/ interjection Word Origin WORD ORIGINum Origin: 1600-1700 Natural sound Examples EXAMPLES FROM OTHER DICTIONARIES So, um, I guess I'll be back around 9. used when you cannot immediately decide what to say next:  Um, yeah, I guess so.
随便看	portcullis portend portent portentous porter Porter, Cole porterhouse steak portfolio porthole portico Portillo, Michael porting portion Portland portly portmanteau portmanteau word Portmeirion Port Moresby Portobello Road port of call port of entry Porton Down Porto-Novo Porto Rico

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。