Chengde
承德外八庙
🗣️ 情景例句
Our pleasure.
好的。
Prevention is better than cure.
预防胜于治疗。
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。