| 词汇 | know what they are talking about |
| 释义 | (redirected from know what they are talking about)know what (one) is talking aboutTo be adequately knowledgeable about or experienced in something one is discussing. Mister, I don't think you know what you're talking about. There's no way these old pipes can withstand that kind of pressure! know what you’re ˈtalking about(informal) have good knowledge of something; be an expert on something: I really enjoyed that lecture. She certainly knows what she’s talking about.That history teacher doesn’t know what he’s talking about. He makes a lot of mistakes. |
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