N,2-formylsulfisomidine
[化] 甲酰磺胺异二甲嘧啶
🗣️ 情景例句
Did you ever think of photographing an aerobics class?
你想过拍摄有氧运动课吗？
When did you call?
你什么时候打电话来的？
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。