39
（网络聊天数字用语）Thank you.
🗣️ 情景例句
What do people usually do on that day?
在这一天，人们通常干什么？
I wonder how many girl friends he's got.
我不知道他有多少女朋友。
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。