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1·Three of the four options offered to lenders to swap or relend existing debts would extend Greece's repayment terms by 30 years, while the fourth would do so by 15 years.

协议为债权人提供了债券互换或者展期等四种选择，其中三种选择将把希腊债务还款期延长30年，第四种则延长15年。