在申请人请求下，该成员的主管机关应提供有关申请情况的信息，不得有不当延误。

At the request of the applicant, the competent authorities of the Member shall provide, without undue delay, information concerning the status of the application.

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进行这项工作不得有不当的延误。

The work should be carried out without undue delay.

《牛津词典》

在这两年中，绝大多数投诉都与航班延误、航班取消、行李处理不当和客户服务有关。

In both years the vast majority of complaints concerned flight delays, cancellations, mishandled baggage, and customer service.

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