在三岁之前，富孩子和穷孩子在语言能力和行为能力的差异就已显露出来。

By the age of three, a poor child is outperformed in verbal ability and behaviour by a rich one.

youdao

在三岁之前，富孩子和穷孩子在语言能力和行为能力的差异就已显露出来。

By the age of three, a poor child is outperformed in verbal ability and behaviour by a rich one.

youdao