Ereptic
[医] 肠肽酶的
🗣️ 情景例句
Please sit down.
请坐下。
Reason rules all things.
情理管万事。
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。