colloquialism [kəˈloʊkwiəlɪzəm]

例句:

• The writer aerateed his writing with a persuasive colloquialism.
  作者用一种有说服力的口语体使他的文章显得生动.
  
• Her speech is informal and filled with colloquialism.
  她的演讲是非正式的,很口语化.
  
• Paraphrase the ancient Chinese prose in colloquialism language.
  把这篇古文译成白话文.
  
• It will probably be argued by a BBC apologist that is just a quaint British colloquialism.
  来自BBC