Of these options no layer is higher than the thermosphere where the temperature is hotter the higher you go.

在这些选项中，没有哪一层比热层更高，热层的高度越高，温度越高。

Also, up here in the thermosphere, we're being exposed to some very intense X-Rays and UV rays from the sun.

此外，在热层上方，我们正暴露在来自太阳的一些非常强烈的 X 射线和紫外线下。