"Because the law stipulates that when the outdoor temperature exceeds 40 degrees Celsius, you should stop working to avoid harm to your body. When the outdoor temperature exceeds 39 degrees Celsius, these outdoor workers cannot work for more than 6 hours, and when the outdoor temperature exceeds 38 degrees Celsius, these outdoor workers are not allowed to work overtime. Therefore, this place has formed a customary rule, and it is not easy to broadcast above 40 degrees Celsius. "