For these younger groups, untreated hearingloss can result in lapses in speech and cognitive development, the authors write.
作者写道，对于这些更年幼的群体，未及时治疗的听力损失可能会导致语言和认知障碍。
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The researchers defined hearingloss as being unable to hear speech sounds of 25 decibels or less, which is the World Health Organization (WHO) definition forhearingloss.