英語メモ（By the way）

話の流れを変えるとき：
By the way...
Anyway...
Actually...
On a different note...
Not to change the conversation but...

会話を中断したいとき：
I'm really sorry but I have to (verb)...
Please forgive me but...
Please excuse me but...
I'm terribly sorry but...
I'll talk to you about it later when I'm free.
I'll give you call next week.