Pixe
[化] 质子激发X射线发射分析
🗣️ 情景例句
Well, I might want to go to Columbia.
嗯， 我也许去Columbia大学。
Sorry kept you waiting so long. You are on .
抱歉让你久等了，接通了。
Can we go and have a drink after that?
种完这棵树后我们能去喝点水吗？