hot air

noun
🔊/ˌhɒt ˈeə(r)/
🔊/ˌhɑːt ˈer/
[uncountable] (informal)
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  1. claims, promises or statements that sound impressive but have no real meaning or truth夸夸其谈;大话;空话
    • He talks a lot of hot air.他说很多话。
    • Don’t worry about what they’re saying—it’s all hot air.不用担心他们在说什么-都是热空气。
    • The whole debate was just so much hot air.整个辩论是如此热烈。