speaking of which
說到這個
口語·話題轉(zhuǎn)換銜接
英文釋義
referring to the topic just mentioned; mentioning something related to the current subject
例句
We need milk. Speaking of which, did you go to the store?
典故來源
由“speaking”和“which”組合，用于自然過渡到相關(guān)話題。