How to say by the way in English?
How to say by the way ("d'ailleurs") in French?
How to say by the way ("de paso") in Spanish?
How to say by the way ("ところで") in Japanese?
How to say by the way ("a proposito") in Italian?
How to say by the way ("顺便一提") in Chinese?
How to say by the way ("그런데") in Korean?