求翻译：a. 若出现异常，支付失败，则可以依据参数设置情况进行重新支付，支付成功则执行 5步骤，如多次支付异常，则结束，并反馈交易异常报告信息是什么意思？

a. abnormal, payment failure, can be based on the parameter is set to re-pay, pay the successful implementation of the 5 steps, such as multiple payment exception, the end, and feedback trading exception reporting information

a. If appears exceptionally, payment defeat, then may carry on based on the parameter establishment situation pays, pays successfully carries out 5 steps, if pays many times unusually, then finished, and feeds back the transaction exceptionally to report the information

A. If an exception occurs, fails to pay, you can based on the parameters set for back pay, payment of successfully performing the 5 steps, such as multiple payment exceptions, the ending, transaction exception reports and feedback information