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. 首頁英語詞典extractionextraction英英釋意

      extraction

      英 [?k'str?k?(?)n; ek-] 美[?k'str?k??n]
      • n. 取出;抽出;拔出;抽出物;出身

      英英釋意


      1. the process of obtaining something from a mixture or compound by chemical or physical or mechanical means
      2. properties attributable to your ancestry;
      "he comes from good origins"
      3. the act of pulling out (as a tooth);
      "the dentist gave her a local anesthetic prior to the extraction"