Definition
Used to express that you have just remembered something you were about to say or discuss.
（用于刚想起某事时）对了，我想起来了
I can't believe I forgot what I was going to say. Oh yes, I haven't told you about my promotion yet!
我不敢相信我忘了我要说的话。对了，我还没告诉你我的升职消息呢！
What should we do next? Oh yes, we need to finish the report first.
我们接下来该做什么？对了，我们需要先完成报告。
I forgot what was the first thing I was supposed to do this morning. Oh yes, I have to mail those packages.
我忘了今天早上第一件事该做什么。对了，我得寄那些包裹。