by the way顺便问一下,顺便说说
观察 By the way, can you take your camera with you, Amy?顺便问一下,你能随身带着你的相机吗,埃米?

探究 by the way意为“顺便问一下,顺便说说”,通常用在交谈中打断话题,以插入题外话或问题。
By the way, where is the bus station?顺便问一下,公共汽车站在哪里?

拓展 与way相关的短语:
in the way妨碍;on the way在路上;in a/one way在某种程度上