Oh,by the way... 啊,对了......

Oh,beforing forget. 啊,趁我还没忘记。

I need to ask you something. 我有件事情要问你。

Can I ask you something? 我可以问你一个问题吗?

What’s that? 什么事?

Oh,that reminds me. 啊,那倒提醒了我.

Spesking out. 说到。

While we are on the subject… 既然说到这个……