And, looking back, it was a great learning experience with lessons that I was able to apply many times during my 30 years as a consultant serving customers.
现在回想起来，那是一段很好的学习经历，让我学到了许多东西，可以在后来30年的客服顾问生涯中多次用到。
These queue models are resolved and at the same time the average feedback time of the customers who failed in serving and needed feeding back to be served again is resolved.
在服务失败而需要反馈重新服务的情况下得到了顾客平均反馈次数。
These queue models are resolved and at the same time the average feedback time of the customers who failed in serving and needed feeding back to be served again is resolved.
在服务失败而需要反馈重新服务的情况下得到了顾客平均反馈次数。
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