The solar term temperature of heavy snow actually reached 20.

You can reflect the abnormality of this matter and write down the ordinary situation as a comparison. The solar term temperature of heavy snow actually reached 20 degrees. When describing it, it is necessary to reflect the abnormality of this matter and make clear the general situation under normal circumstances, so as to become the control group. For example, the solar term temperature of heavy snow actually reaches 20 degrees, usually around MINUS 10 degrees. The weather is abnormal this year.