hot air idiom informal
空话，大话
If something that someone says is hot air, it is not sincere and will have no practical results.
His promises turned out to be a lot of hot air. 他的承诺到头来只是一句空话。
| 单词 | hot air |
| 释义 | hot air idiom informal 空话，大话 If something that someone says is hot air, it is not sincere and will have no practical results. His promises turned out to be a lot of hot air. 他的承诺到头来只是一句空话。 |
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