Keypal
n. 键友; 网友
🗣️ 情景例句
I'm sure everything is fine.
我确信一切都很好。
The hungry belly has no ears.
饥寒起盗心。
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。