Many people complain what they consider the over-commercialization of a sacred holiday, but, underneath all the business activity, a great deal of genuine Christmas spirit is to be found.

许多人埋怨圣洁的圣诞节太商业化了，但商业活动下可以发现真正的圣诞精神。

youdao

What would you say to Mrs So-and-so who has called to complain about a noisy neighbour?

要是哪位太太嫌邻居太吵闹，打电话投诉，你跟她怎么说？

《牛津词典》

What right had the friendless to complain?

没有朋友的人有什么权利抱怨呢？

youdao

What should be the rules about what newspapers and the electronic media may do, how, and who can complain in what manner when they have done so?

FORBES: A Feminist Approach to the Freedom of the Press

Smelly food at lunch time is banned because people complain about what others eat.

BBC: The pleasures and perils of the open-plan office

It's not good enough for us to complain about what other people aren't doing for us.

CNN: Recycling hotel soap to save lives