单词	head cold
释义	head coldˈhead cold noun [countable] a cold that makes it difficult for you to breathe
随便看	optimist optimistic optimize optimum option optional optometrist opt-out opulence opulent opus OR -or or oracle oracular oral oral contraceptive orally oral sex oral surgeon orange orangeade Orange Bowl Orange Free State

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。