Definition
Used to express that you have just remembered something you were about to say or discuss.
（用於剛想起某事時）對了，我想起來了
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說的話。對了，我還沒告訴你我的升職消息呢！
What should we do next? Oh yes, we need to finish the report first.
我們接下來該做什麼？對了，我們需要先完成報告。
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該做什麼。對了，我得寄那些包裹。