hot air
空洞的話語或夸大其詞的言論
口語·批評空談或吹噓
英文釋義
meaningless or exaggerated talk; empty promises or boasts
例句
Don't listen to his promises; it's all hot air and nothing will happen.
典故來源
熱空氣輕飄無實質(zhì)，比喻空洞無物的大話或虛假承諾。