The total amount of credit committed to a borrower or a country, namely the total amount of money that a bank may lose in case the borrower breaches the agreement.
就借款而言，指某一借款人或国家的借贷总额，即借款人一旦违约银行可能损失的总金额。
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It is no accident then that the US has emerged as the world's chief deficit country - its "borrower of last resort".