by the way idiom
A2 顺便说，顺便问一下
used to introduce a new subject to be considered or to give further information
I think we've discussed everything we need to - by the way, what time is it? 我想需要讨论的问题我们都讨论了——顺便问一下，几点了？
Oh, by the way, my name's Julie. 噢，顺便说一下，我叫祖莉。