Ethnically and economically balanced bilingual classrooms are found to be helpful for kids to get used to social and cultural diversity.

研究发现，在（学生）种族比例和（家庭）经济水平趋于平衡的双语课堂有助于孩子们适应社会和文化的多样性。

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While a balanced bilingual has near equal abilities across the board in two languages, most bilinguals around the world know and use their languages in varying proportions.

一个均衡的双语者，对于两种语言的掌握程度是接近的。世上大多数的双语者，以不同的程度掌握、了解和使用他们的语言。

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