顾客组成的变化正不断地增加对我们全球顾客的要求，新的和二手机器进和使用领域，却没有经验，或只有有限的支持服务基础设施。
Changes in customer demographics are placing increasing demands on our global customers as new and used machines find their way into environs with inexperienced or limited support infrastructure.
他很愚蠢地让一个没有经验的年轻助手去照顾一些非常重要的顾客。
He foolishly left an inexperienced young assistant to attend to some very important customers.
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