Rescattering
二次散射; 重散射
🗣️ 情景例句
Not at all.
不客气。
You are bigger than I am.
你比我大
Imagine a star up t twenty times larger, brighter, brighter and hotter than our own sun.
设想一下，一颗恒星比我们的太阳还要大，还要亮，还要热20倍，