letter opener
noun [ C ] mainly US uk/ˈlet.ər ˌəʊ.pən.ər/ us/ˈlet̬.ɚ ˌoʊ.pən.ɚ/ (UK usually paper knife)
拆信刀
a knife for opening envelopes that is not sharp and is often decorative
英汉双解词典收录81607条英汉双解翻译词条,基本涵盖了全部常用单词的读音、翻译及用法,是英语学习的有利工具。