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The researchers tested 44 12-month-olds to see how they recognized three-syllable patterns — nonsense words, just to test sound learning. 研究者們測試了44個12個月大的嬰兒去看他們如何辨別三音節(jié)的發(fā)音方式——毫無意義的話，僅僅用來測試對聲調的學習。