lallation
  將r音發成l音
  lal·la·tion /læˈleʃən/ 名詞
  嬰兒樣語
  Lal·la·tion n.  An imperfect enunciation of the letter r, in which it sounds like l.
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  lallation
       n 1: defective articulation of the `l' phoneme or the phoneme `r'
            is pronounced as `l'
       2: gibberish resembling the sounds of a baby [syn: babble, babbling]