求翻译：To receive more than the base rate of Family Tax Benefit Part A for a child from a previous relationship, you or your partner must take reasonable action to obtain child support. To apply for child support from the other parent of the child, you or your partner should contact the Child Support Agency[4]. If there is any reason that makes it difficult for you or your partner to apply for child support from the other parent, or you or your partner are unsure of what to do, you should contact the Family Assistance Office to discuss the situation.是什么意思？

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