·2,447,543篇论文数据，部分数据来源于NoteExpress
But the new research suggests a more detailed line of questions: by 7 months or so, have the sounds developed into that canonical babble, including both vowels and consonants?
然而最新研究提出了一系列更具体的问题：宝宝7个月大时，会将听到的声音演化为简单的咿呀话语，这其中同时包括元音和辅音吗？
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