Serclimax
演替系列顶极(植物)群落
🗣️ 情景例句
I apologize.
我道歉。
We can't afford the expense.
我们不能付出那些花销。
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。