Rnaa
[化] 放化中子活化分析
🗣️ 情景例句
He's upset over the fact that he wasn't promoted this year.
他对今年没有升迁感到恼怒。
How've you been?
别来无恙？
I'd prefer to do that tomorrow. I don't feel like walking very much today.
我宁可明天游览。今天我不太想步行。