There's been a record number of complaints about the standard of service.

已有对服务水准的创纪录数量的投诉。

《柯林斯英汉双解大词典》

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

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。

youdao

Fluctuating bars of service, random outages, not running entirely, shutting down the phone - the complaints on the Apple forums and throughout the blogosphere have ranged pretty extensively.

起伏不定的信号格，随意就无服务，完全不工作，电话停机——从苹果社区到博客世界，已经是牢骚遍地。

youdao

The sheer size of the service is at the heart of many complaints, such as long waiting times, canceled operations and poor nursing care.

VOA: standard.2009.09.24

He responded to their complaints of slow service and arrogant engineers by adding 400 customer-service agents to take orders and quote jobs faster.

FORBES: By the Numbers

It also said that although the number of complaints about the ambulance service remained high, particularly over response times, the number of written compliments the service received outnumbered complaints.

BBC: Ambulance

The report said 58% of justified complaints about the East of England Ambulance Service concerned delays in the arrival of crews, 17% were about clinical care, 15% were over staff attitudes and 5% about emergency call handling.

BBC: East of England Ambulance: Patient deaths discussed