The technological empire begins with polymer materials

The situation was more serious than I thought. After three days of hanging in a bottle, the fever subsided and my throat no longer hurt, but I am still weak and my brain is confused. Looking back at the words I wrote in the past two days, it is not satisfactory.

I couldn't help but ask myself, what happened? It's just a cold, why is recovery so slow?

Suddenly, I remembered that in July, I had just undergone an eight-hour operation. Maybe this was the reason why my body function was obviously not as good as before.

Sorry everyone, I'm not feeling well, so I have to rest for another day.