Comminutions
小碎粒
🗣️ 情景例句
When was it built?
它是什么时候建造的？
I hope you get to the airport on time.
我希望你准时到机场。
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。