🗣️ 情景例句
Tell me plainly what you mean.
把你的意思明明白白告诉我。
We noticed the noise.
我们注意到了那种声音。
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。