What do people want back when they send dd?

Someone sends dd, which means Didi. It means asking me if I'm here, or talking privately. At this time, you can reply that I am here, what's the matter; Bao, what's the matter I am here with good things, and other things are not; If you have something to say, call me for anything; I am here, even if I am in the ends of the earth, I must appear at once.

1, I'm here. What's up?

2. Bao, what's the matter

If something good happens, I will be here, nothing else.

If you have something to say, what can I do for you?

I am here, even if I am at the ends of the earth, I must appear immediately!

6. What's this? It's always there!

7. If nothing happens, I will still be here in the next few decades.

8. Is there anything wrong?

9. I have something to say. I'm a little busy now.

10, what can I do for you? Go!