(续上)……因它论的是他已有妻子儿女、已尽了生养众多之诫的情形,他再聘定另一个妇人只是任意之举。
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……因为它说的是他已经有了妻子与儿女的情形,所以他已经尽了生养众多的诫命,他聘定另一个妇人只是一个任意之举。
because it is dealing with a case in which he already has a wife and children, so that he has already fulfilled the mitzva to be fruitful and multiply, and his betrothal of another woman is only an optional act.