单词	um and ah
释义	um and ahˌum and ˈah verb [intransitive] informal to think for some time before making a decision:  He ummed and ahed a bit but eventually agreed to help us.
随便看	over-the-top overthrow overtime overtired overtly overtone overtook overtop overture overturn overuse overvaluation overvalue overview overweening overweeningly overweight overwhelm overwhelming overwhelmingly overwinter overwork overworked overwrite overwrought

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。