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🗣️ 情景例句
Thanks a lot.
多谢。
If he doesn't, will you paint it?
如果他不，你会油漆它吗？
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。