It's kind of a good thing: keeps half of the planet from freezing solid.

转动其实是件好事，这让一半的地球不是冰天雪地。

At the same time, it traps the infrared radiation — aka heat —radiating out from Earth's sun-warmed surface, keeping us from freezing solid at night.

同时，它捕获了从地球上被太阳热表面发出的红外辐射——也就是热量，使我们在晚上不至于冻成冰块。

At the same time, it traps the infrared radiation – aka heat – radiating out from Earth’s sun-warmed surface, keeping us from freezing solid at night.

同时，它捕获红外辐射——也就是热量——从地球被太阳加热的表面辐射出去， 使我们在夜间不会冻僵。