Dear Mr.Li,
As you are usually very prompt in settling your accounts, we are wondering whether
there is any special reason why we have not received payment of the above
account,already a month overdue.We thought you might not have received the
statement of account we sent you on July 25th showing the balance of US $60,000
you owe. We are sending you another copy today and hope it may have your early
attention.
Yours faithfully,
*****
尊敬的李先生：
鉴于贵方总是及时结清货款，而此次逾期一个月仍未收到贵方上述账目的欠款，我们想知道是否有何特殊原因。
我们猜想贵方可能未收到我们7月25号发出的60000美元欠款的账单。现寄出一份，并希望贵方及早处理。
您诚挚的
*****
生词
prompt名词：付款期限
overdue形容词：过期的；未兑的