🗣️ 情景例句
Let's see.
让我想想。
Whatever happens, don't worry.
不管什么事情发生，你都不要担心。
So the number of stars that we know exist is now estimated at about 300 million million million.
因此，我们所知道的现有恒星数目估计约有30亿×1000亿颗。