Mr. Brown had a daughter who had two daughters and two sons.

布朗先生有一个女儿，他女儿有两个女儿、两个儿子。

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He has two sons and two daughters.

他有两个儿子，两个女儿。

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A couple, their two daughters and two sons go on a vacation.

夫妻，他们的两个女儿和两个儿子去度假。

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A couple, their two daughters and two sons go on a vacation.

夫妻，他们的两个女儿和两个儿子去度假。

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