英语词汇“pioneer tunnel”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pioneer tunnel
释义	pioneer tunnel noun or pioneer bore : a small tunnel parallel to a main tunnel and well in advance of the completed main tunnel so that by crosscuts to the line of the main tunnel several headings can be exposed and work expedited
随便看	realise realism realism realist realist realistic realistically reality reality reality check reality principle reality testing realizability realizable realizably realization realization realization and liquidation account realizationism realizationist realize realizer realizing realizing realizingly

英语词典包含332784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。