A few Chinese phrases I need help with! For when I don't understand something...

I'm sorry, I didn't understand. Can you repeat that please?
对不起，我不明白了。你能再说一遍吗？

Could you say that slower？
你可以说慢一点嘛？

Can you type/write that out for me please?
你可以写出来给我好吗？

One moment please.
请稍等。

This is my first time speaking your language.
这是我第一次见你的语言。   这是我第一次说你们的语言。

I am a beginner.
我是初学者。

I have to look that up.
我要看看这件事。

I am using a dictionary right now.
先在现在我使用的是字典。/ 我在用字典。

A few Chinese phrases I need help with! For when I don't understand something...

I'm sorry, I didn't understand. Can you repeat that please?
对不起，我不明白了。你能再说一遍吗？

Could you say that slower？
你可以说慢一点嘛？

Can you type/write that out for me please?
你可以写出来给我好吗？ better 你能写出来给我看么？

One moment please.
请稍等。

This is my first time speaking your language.
这是我第一次见你的语言。 这是我第一次说你们的语言

I am a beginner.
我是初学者。

I have to look that up.
我要看看这件事。better 我得再看看

I am using a dictionary right now.
先在现在我使用的是字典。 better 我正在用字典

A few Chinese phrases I need help with! For when I don't understand something...

I'm sorry, I didn't understand. Can you repeat that please?
对不起，我不没明白了。你能再说一遍吗？

Could you say that slower？ Why don't use "slowlier" here?
你可以说慢一点嘛？

Can you type/write that out for me please?
你可以写出来给我好吗？

你可以写出来给我好吗？

One moment please.
请稍等。

This is my first time speaking your language.
这是我第一次见说你的语言。

I am a beginner.
我是初学者。

I have to look that up.
我要看看这件事。 我得查一下（I'm not sure that I am right）

I am using a dictionary right now.
先在我使用的是字典。我在用字典

A few Chinese phrases I need help with! For when I don't understand something...

I'm sorry, I didn't understand. Can you repeat that please?
对不起，我不明白了。你能再说一遍吗？

Could you say that slowly？
你可以说慢一点嘛？

Can you type/write that out for me please?
你可以打/写出来给我好吗？

One moment please.
请稍等。 or 请等一下 This warmer and not too abrupt.

This is my first time speaking your language.
这是我第一次说见你的语言。

I am a beginner.
我是初学者。

I have to look that up.
我须要看看这件事。

I am using a dictionary right now.
先現在我在使用的是字典。