Concretions
(concretion 的复数) n. 凝固, 凝固物, 结石\\n[医] 凝结物, 结石; 粘连; 凝结(作用)
🗣️ 情景例句
I think it's about time we got going.
我想差不多是告辞的时候了。
I'm Kathy King.
我是凯西·金。
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。