by the way
US /baɪ ðə weɪ/
UK /baɪ ðə weɪ/

1.
그런데, 그건 그렇고
used to introduce a topic or information that is not directly related to the current conversation but is considered relevant or interesting
:
•
By the way, did you hear about Sarah's new job?
그런데, 사라의 새 직업에 대해 들었어?
•
I need to go to the store. By the way, do you need anything?
가게에 가야 해. 그런데, 뭐 필요한 거 있어?