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. inertia

      英 [?'n????] 美[?'n???]
      • n. [力] 慣性;惰性,遲鈍;不活動(dòng)

      英英釋意


      1. a disposition to remain inactive or inert;
      "he had to overcome his inertia and get back to work"
      2. (physics) the tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force