Mistram
导弹弹道测量系统
🗣️ 情景例句
I say forget about the whole plan.
要我说，还是把整个计划忘掉吧。
I guess he will say something.
我猜他会说什么。
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。