speaking of which
01
说到这个, 顺便一提
used to smoothly transition from one topic to another, often when the second topic is related to or follows naturally from the first
Collocation
例子
I was telling you about my favorite books, and speaking of which, have you read any good novels lately?
我刚刚在跟你讲我最喜欢的书，顺便问一下，你最近读过什么好小说吗？
