Alkaptonuria
[医] 尿黑酸尿
🗣️ 情景例句
Just sketching.
只是画些草图。
Lily is a Sophomore now.
莉莉现在大学二年级。
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。