Wo3 jue2 de  zhei4 yang4  bu2 tai4 hao3

Wo3 jue2 de: I think
Zhei4 yang4: in this way
Bu4: not
Tai4: very
Hao3: good

I think in this way not very good / i’m not comfortable with that. 

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Y: Alright so what if I asked you to do my report?
R: No I will not until you give me back my red stapler.
Y: No, you have to say something else.
R: Like what? "I’m in the middle of something"?
Y: Good. This is how you say it in Chinese: 我正忙着呢。

Wo3 zheng4 mang2 zhe ne.
Wo3: I
Zheng4: right now,
Mang2 zhe: be busy, in the middle of sth,
Ne: [used at the end of a sentence, indicating the notion that an action or situation is in progress]

I right now busy/ I’m in the middle of something,
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Y: Well that wraps up this section of Chinese studio.
R: Thanks for listening and take care of yourself.
Y: NO. I am not comfortable with that.
R: Oh, hahahaha, I remember, you are not comfortable with taking care of yourself.
Y: Yes......... wait what?
R: How do you say "I’m in the middle of something" in Chinese?
Y: Send your answer to Chinese@crifm.com
R: Website.