英语句子的翻译But if she hopes her new-found lucre will yield lasti

英语句子的翻译
But if she hopes her new-found lucre will yield lasting feelings of fulfilment, she could do worse than read Happy Money by Elizabeth Dunn and Michael Norto.
但如果她希望她新得到的财富会让她产生持久的满足感，她可能需要读读伊丽莎白·唐恩和迈克尔·诺顿合著的《快乐理财》。
上面的英语中，后半句“she could do worse than read Happy Money by Elizabeth Dunn and Michael Norto.”，这句话的翻译我不太理解，she could do worse than 在这里该怎样理解，请高手帮我指点一下。