The most common complaint is about poor service.

最常见的投诉与服务差有关。

《牛津词典》

One common convention for naming service uses upper case letters to separate words in the name of the service.

命名服务的一个常见惯例是使用大写字母来分离服务名中的单词。

youdao

youdao

"That is the meaning of service," "That is the difference we can make when we remember our common humanity, when we embrace our common responsibilities, when we recognize our common destiny."

VOA: standard.2009.09.23

All of a sudden people will say, wait a minute, if Ican get the same product or service at a common currency price and it's better, why stay with the home country bank?

FORBES: Unrealistic expectations

Prepaid mobile phone service is more common in Europe and the rest of the world than it is in the United States, and Euronet provides airtime PINs for more than 100 national and regional networks.

FORBES: Euronet: Prepaid Mobile Phone Mania

Indeed, the idea of a national postal service, with a common national charging structure, remains popular.

ECONOMIST: Post Office