Koala Reads

"After Li Zhichen's detailed explanation, although Qi Lixiao still didn't quite understand terms like "heat" and "releasing heat when cooled", he roughly grasped what the self - heating fabric was."

""Zhichen, do you intend to use this fabric to make winter clothes?""

"Li Zhichen smiled and said, "You're smart.""

"It was late September. The weather had been pleasant a few days ago, but after a heavy rain, the county town seemed to have entered autumn overnight. The temperature difference between morning, noon, and evening was extremely large. One wouldn't feel cold wearing thin summer clothes at noon, but even with thick lined clothes on in the morning and evening, one could still feel the biting autumn wind."