Antifading
抗衰减的
🗣️ 情景例句
Hi.
嗨。
Where am I supposed to pay the excess train fare?
我应该在哪里补票？
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。