中文字幕精品视频在线|中文字幕在线观看|亚洲v日本v欧美v在线播放|伊人网中文字幕

<nav id="3u6n6"></nav><samp id="3u6n6"><tr id="3u6n6"><track id="3u6n6"></track></tr></samp>
    <legend id="3u6n6"><fieldset id="3u6n6"></fieldset></legend>

      
      

    1. instrumental

      英 [?nstr?'ment(?)l] 美[,?nstr?'m?ntl]
      • adj. 樂(lè)器的;有幫助的;儀器的,器械的
      • n. 器樂(lè)曲;工具字,工具格

      英英釋意


      1. relating to or designed for or performed on musical instruments;
      "instrumental compositions"
      "an instrumental ensemble"
      2. serving or acting as a means or aid;
      "instrumental in solving the crime"