英语词汇“period of usefulness”的翻译、意思、用法、释义-英汉双解词典-礼仪网

单词	period of usefulness
释义	请查阅词条：usefulness
随便看	cathedral ceiling cathedral city cathedraled cathedrals cather catherine catherine beecher Catherine de' Medici catherine de' medici catherine de medici catherine deneuve catherine, duchess of ... catherine, duchess of Catherine, Duchess of Cambridge catherine howard Catherine II Catherine of Aragon catherine of aragon catherines Catherine, St Catherine wheel Catherine wheels cathers Cather, Willa catheter 渺然渺茫飙歌飙涨飙红飙车飙风飙高飛飜 Schlußlichtumschaltung Schlußläufer Schlußnote Schlußoperation Schlußprobe Schlußprotokoll Schlußpunkt Schlußquittung Schlußrede Schlußsaldo