Kidsarefarbetterthanadultsatlearninghowtospeakmultiple（...
问题详情：Kidsarefarbetterthanadultsatlearninghowtospeakmultiple（多样的）languages.Researchnowshowsthatveryyounginfantsmighthavesomeofthebestlanguageskillsofall.Anewstudysuggeststhatbabiesbetween4and6month...