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by the way; incidentally; well; now
even if; no matter (what, where, how, etc.)
さて、所で本題に入りましょう。
Now, let's get to the main topic.
ところで、明日は何時に会いますか?
By the way, what time shall we meet tomorrow?
ところで、彼はもう帰りましたか?
Incidentally, has he already gone home?