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aggregationaggregation英英釋意

      aggregation

      英 [,?ɡr?'ɡe???n] 美[,?gr?'ge??n]
      • n. [地質(zhì)][數(shù)] 聚合,聚集;聚集體,集合體

      英英釋意


      1. several things grouped together or considered as a whole
      2. the act of gathering something together