Beryllia
氧化铍
🗣️ 情景例句
She sure was.
她小时候很逗人喜爱。
Oh, I'm just going to take it easy.
哦，我只想休息休息。
I was not surprised to find that the machine still refused to work after I had reassembled it,
等我装完后，那台割草机仍然一动不动，对此我倒并不感到吃惊。