柜员机为什么单笔处理交易？

中文段落：

柜员机，作为现代金融服务的重要组成部分，以其高效、便捷的特点深受广大用户的喜爱。在柜员机进行交易时，我们经常会遇到“单笔处理”的情况，即每次只能处理一笔交易。这背后的原因是什么呢？

首先，单笔处理有助于保证交易的准确性和安全性。在每次交易过程中，柜员机会对用户的账户信息、交易金额等关键数据进行严格的验证和核对，确保交易的真实性和合法性。这种处理方式能够最大程度地避免交易错误和欺诈行为的发生。

其次，单笔处理有助于提高柜员机的工作效率。由于每次只处理一笔交易，柜员机可以更加集中地进行数据处理和运算，减少了等待和排队的时间，提高了整体的服务效率。

此外，单笔处理也符合金融行业对于风险管理和内部控制的要求。通过单笔处理，银行可以更加精确地监控每一笔交易的风险情况，及时发现和防范潜在的风险问题，保障金融市场的稳定和安全。

英文段落：

The teller machine, as a crucial component of modern financial services, is widely favored by users due to its efficiency and convenience. When conducting transactions through the teller machine, we often encounter the term "single-transaction processing," meaning only one transaction can be processed at a time. Why is this the case?

Firstly, single-transaction processing helps ensure the accuracy and security of transactions. During each transaction, the teller machine performs stringent verification and checking on key data such as user account information and transaction amounts, guaranteeing the authenticity and legality of the transaction. This processing approach minimizes the occurrence of transactional errors and fraudulent activities.

Secondly, single-transaction processing enhances the efficiency of the teller machine. As only one transaction is processed at a time, the teller machine can focus more on data processing and calculations, reducing waiting and queuing time, and improving overall service efficiency.

Moreover, single-transaction processing aligns with the financial industry's requirements for risk management and internal control. Through this approach, banks can more precisely monitor the risk profile of each transaction, promptly identify and mitigate potential risks, and safeguard the stability and security of the financial market.