Radionitrogen
[医] 放射性氮, 射氮
🗣️ 情景例句
How are you doing?
你怎么样？
I'll pick up the tab.
我来付帐。
Though he managed to take a number of brilliant photographs, he could not stay near the volcano for very long.
尽管他设法拍了一些十分精彩的照片，但他却不能在火山附近停留太长的时间。