Rnaa
[化] 放化中子活化分析
🗣️ 情景例句
He seems to be getting on very well at school.
他在学校似乎过得很好。
Thank you for your attention.
谢谢大家专心聆听。
Suddenly, I saw the Officer's face light up.
突然，我看到官员脸上露出了得意的神色。