AOO

例句：

1. 1. AOO, I'm just checking in to say hi!
   AOO，我只是打个招呼！
2. 2. AOO, I hope you're having a great day!
   AOO，希望你今天过得愉快！
3. 3. AOO, it's been a while since we last spoke.
   AOO，我们好久没联系了。