Did you get that?/Do you understand?

你明白吗？

Are you listening to me?/Are you paying attention?

你在听我说话吗？/你在注意听吗?

Is there something else going on over there?

你那边有其他的事情吗？

You sound like you're distracted.

你好像并没有集中注意听我说话。

Could you repeat that to me to make sure you got it?

你能再重复一遍确保你记下了吗？

Did you understand everything I just said?

你明白我刚刚说的吗？

Are you writing this down?

你记下了吗？

I didn't catch that last part.

我没听明白最后一部分。

Could you repeat that, please?

能请你重复一遍吗？

Please speak slower.

请说慢点。

I think I got it./Yeah, I got everything.

我明白了。/是的，我都明白了。

I'm sorry, there are too many people talking in the background. What did you say?

对不起，我这里说话的人太多了，你刚刚说了什么？

Dialogue:

A: Did you get all that?

你都记下了吗？

B: Let me repeat it. You will be in your office until three, after which he can reach you at 455-998, right?

我来重复一遍。你会在办公室待到三点，之后联系你打455998，对吗？