When the vocal folds are spread apart during quiet breathing, the larynx constitutes a tubular air tunnel with somewhat irregularly shaped walls.

 
       
  • 當聲帶在安靜呼吸時(shí)分開(kāi),喉頭構成一個(gè)管狀的風(fēng)洞,其管壁有些不規則。
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