亲爱的先生：
第8756号账单
未见贵方对我们9月8日来信要求结算一事之回复。我们再次来函提醒贵方，欠款为80，000美元。毫无疑问，一定有特殊原因使贵方延误付款，我们期待贵方说明原因并寄上汇款。
你真诚的xxx
dear sirs,
ac no.8756
not having received any reply to our e-mail of september 8 requesting settlement of the above ac, we are writing again to remind you that the amount still owing is us$ 80,000. no doubt there is some special reason for delay in payment and we should welcome an explanation and also your remittance,
yours faithfully,
xxx