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	out-of-dateness out of debt out of depth out of door out-of-doorness out-of-door relief out of doors out-of-doors out of doors out of earshot out-of-fashion out of fashion out-of-fashioned out of favour outoffice out of focus out of form out of gear out of gear out of gourd out of hair out of hand out of hand out of harmony out of harm's way 排球比赛中运动员为什么打暗号? 排球运动是怎样产生的? 掘地三尺感知星球探析海沟与岛弧之成因探秘中国首座航母军港探秘美国UFO博物馆展览外星人僵尸的地方探索十大神秘宇宙未解之谜探险之旅的文化提出现代原子学说的人是谁？提香是谁？ Notsignal Notsignalisation Notsitz Notstand Notstop Notstraße Notstrom Notstromaggregat Notstromversorgung Nottaste