Radionitrogen
[医] 放射性氮, 射氮
🗣️ 情景例句
Don't worry, be happy.
别担心，开心点。
A good dog deserves a good bone.
有劳得奖。
He has eight lawyer assistants to help him and examines every single letter in detail.
他有8位律师作他的助手协助工作，每封信都详细批阅。