She found that mothers who used devices during the exercise started 20 per cent fewer verbal and 39 per cent fewer nonverbal interactions with their children.
她发现，在练习过程中使用设备的母亲与孩子进行的口头交流减少了20%，非语言交流减少了39%。
Parents don’t have to be exquisitely present at all times, but there needs to be a balance and parents need to be responsive and sensitive to a child’s verbal or nonverbal expressions of an emotional need,” says Radesky.
拉德斯基说：‘父母并不需要时时刻刻都极度专注，但需要保持一种平衡，同时要对孩子表达情绪需求时的言语或非言语信号做出回应和敏感的反应。’
slows down babies’ verbal development
减缓婴儿的语言发展
verbal expressions are unnecessary for emotional exchange
言语表达对于情感交流是不必要的
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。