lip service
noun /ˈlɪp sɜːvɪs/
/ˈlɪp sɜːrvɪs/
[uncountable]- if somebody pays lip service to something, they say that they approve of it or support it, without proving their support by what they actually do
空口的应酬话；口惠 - All the parties pay lip service to environmental issues.
对环境问题各方都是口惠而实不至。
- All the parties pay lip service to environmental issues.