順便問一下， 這是什麼? 順便一問， 這是什麼?

by the way=顺便, But in our daily life,we won't use the phrase frequently.It's common to say the words"对了，......."to start a new topic.

by the way=顺便, by the way , i want to tell you:"....." 我想顺便告诉你一下。。。。 i will give this to him by the way, 我可以顺便把这个给他

1,對了! would you go with me? 2.順便一提 ,would you go with me?.3.我突然想到, would you go with me? 4.阿! would you go with me? 5. By the way , would you go with me?

英文課本寫:順帶一提 不過口語是不會這樣說