As they are vocal organs, the generation of sound begins from the close of vocal cord.

 
  • 喉器和聲帶是歌唱的發(fā)聲器官,聲音的產(chǎn)生是從聲帶的閉合開(kāi)始的。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan