lip service

1. N-UNCOUNT If you say that someone pays lip service to an idea, you are critical of them because they say they are in favour of it, but they do not do anything to support it. 口头上的支持[usu N 'to' n/-ing] [表不满]

Unhappily, he had done no more than pay lip service to their views. 不幸的是，他对他们的观点只予以口头上的支持。