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Observe your child's language development if you have one.
如果你有孩子，观察一下你的孩子是怎么学习语言的。
youdao
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Objective to identify the language development in 2 to 4-year-old children.
目的了解2 ~4岁儿童正常的语言发育规律。
youdao
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Objective to identify the language development in 2 to 4-year-old children.
目的了解2 ~4岁儿童正常的语言发育规律。
youdao