The primary purpose of private speech is to help the preschooler plan and guide her behavior as she learns new skills.

小宝宝们每天都忙着学习新技能，这种自言自语的终极目的是帮助宝宝计划和引导他们的行为。

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The average preschooler sees about three ads a day, according to the findings. Teenagers see about five per day.

根据该研究的发现，学前儿童平均一日看到大约3则广告，十多岁儿童看到大约5则。

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This preschooler is 'an absolute trooper' already comfortable with foreign languages and foods, the executive writes.

她写道，还没上学的女儿是不折不扣的“空降兵”，已经能够自如地适应外国语言和食物了。

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They're not exactly plentiful, according to the Yale study, which says of the more than 3, 000 children's meals options they examined, only 12 of them passed the nutrition test for a preschooler.

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