standing over of payment

例句：

1. 1.The company's standing over of payment has reached $50,000.
   该公司的未付余额已达5万美元。
2. 2. The bank is holding the client's outstanding payment for collection.
   银行正在收取客户的未付款项。
3. 3. The customer was surprised to find that there was a standing over of payment due to their late payment.
   客户惊讶地发现，由于他们的迟付款，有一笔未付款项。