「说到这个」英文怎么说？speaking of which
speaking of which = 说到这个（词组）
speaking of which 是什么意思？
speaking of which：说到这个。出自主题「让你听起来更流利的句子」。
例句
- Speaking of which, are you free Friday?
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同主题还有
| I see what you mean | 我懂你的意思 |
| that makes sense | 有道理 |
| to be honest | 老实说 |
| it depends | 看情况 |
| as far as I know | 据我所知 |
| by the way | 顺带一提 |
| on second thought | 仔细想想 |
| that being said | 话虽如此 |