名词
中文翻译：债务
同义词：
['book loan', "book borrowing例句：1. I've been paying off my book debt for the past six months.（我过去六个月一直在还我的书债。）"]
例句：
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1. I've been paying off my book debt for the past six months.
我过去六个月一直在还我的书债。
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2.The library has a policy of helping people pay off their book debts.
图书馆有政策帮助人们偿还他们的书债。
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3.Many students struggle to pay off their book debts before graduation.
许多学生在毕业前难以偿还他们的书债。