this means that their body temperature rises and falls with that of their surroundings请讲解句子
我知道意思 这就是说 他们的提问随着周围的温度上升而上升 下降而下降
那么 with that of their surrounding 中 that of their surrondings 呢 that 做代词的话 of their surrondings of 做什么呢