Q) What three words would you use to describe today?

Ans)
I choose “rainy”, “ordinary” and ”sigh” to describe today.
We have a lot of fine days in Tokyo during winter.
However, it was rainy today.
I think it has a good effect on air dryness and the flu epidemic.

As for work, it was  an ordinary day but it was okay. Let's think positively. I’m happy and I don't have any troubles today!

The last one "sigh" is because the progress of studying English in my free time is slow like a turtle walking.
It will take a long time to be able to speak English well. I’m going to sigh when I think about it.

Q&A Diary 4th Entry.

I would appreciate it if you could correct my English. Thank you.

Q) What three words would you use to describe today?

Ans)
I will choose “rainy”, “ordinary” and ”sigh” to describe today.
We have a lot of fine okay days in Tokyo in winter. (okay sounds more natural here)
However, it was “rainy” today.
I think it’s a good effect on air dryness and flu epidemic. (This is completely understandable but just sounds slightly unnatural. One way to reword it more naturally would be something like this: I think it will be good for us since the air has been dry and because of the flu epidemic)

As for work, it was “ordinary” day but it’s that's OK. Let’s think positively. I’m happy and without having any troubles today!

The last one: "sigh". The progress of studying English in my free time is slow, like a walking turtle walking.
It will take a long time to be able to speak English well. I’m going to sigh when I think about it.

Your english is great, so great work, and don't be discouraged! It was very easy to understand everything you said. The only changes I suggested were to make you sound more natural. 

We have a lot of fine days in Tokyo in winter.

"We have a lot of (fine, okay, good) days in Tokyo winter."

Or

"We have a lot of (good) days during winter in Tokyo."

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As for work, it was “ordinary” day but it’s OK.

"As for work, it was an "ordinary" day but that's okay"

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Let’s think positively.

"Let's be positive!"

I’m happy without having any troubles today!

"I'll be happy today and trouble-free"

Or

"Ill be without troubles today!"

Good Work!