lip service

noun
🔊/ˈlɪp sɜːvɪs/
🔊/ˈlɪp sɜːrvɪs/
[uncountable]
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  1. 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。🔊🔊