英语词汇unprecedented efficiency怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	unprecedented efficiency
释义	unprecedented — 未有 • 前所未有 • 空前 • 前所未有的 • 破天荒 • 旷古未闻 • 亘古未有 • 前所未闻 • 旷古未有 efficiency n — 效率 n • 高效 n • 效益 n • 能效 n • 效能 n • 效率 n unprecedented [idiom.]— 前不见古人，后不见来者 unprecedented adj — 未见 adj efficient adj — 有效 adj • 高效 adj • 效率 adj • 高效率 adj • 有效率 adj • 得力 adj • 麻利 adj • 干净利落 adj
随便看	process is gradual process is guided by process is held process is implemented process is initiated process is kept process is mandatory process is modeled process is monitored process isolation process is ongoing process is over process is pending process is performed by process is preceded by process is progressing process is properly process is repeated process is reversed process is slightly different process is stopped process is straightforward process issues process is supported process is taking place

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

unprecedented —