Spectroheliogram
n. [天]太阳单色光照相
🗣️ 情景例句
Craft and Craft.
Craft and Craft。
Don't worry.
不要担心。
and then there are three thousand million other Milky Ways, or galaxies, in the universe.
况且在宇宙中还有30亿个天河，即银河系。