默认串行口

例句：

1. 1. The company defaulted on its loan repayments.
   公司拖欠了贷款还款。
2. 2. If the payment is notmade by the deadline, the default willbe enforced.
   如果到期未支付，将强制执行违约。
3. 3. The bank defaulted onits promise to lend money to the smallbusiness owner.
   银行未能履行向小企业主提供贷款的承诺。