Pixe
[化] 质子激发X射线发射分析
🗣️ 情景例句
I said exactly the same thing to Grandpa.
我跟你爷爷说了同样的话。
She is the boss in the house.
她是一家之主。
it would be up and down, to and for and from side to side.
呈现出上上下下、来来回回、左左右右3种性质的运动。