Pervanadate
过钒酸盐
🗣️ 情景例句
What's the matter?
到底发生了什么事？
We trust you can meet our requirements.
相信贵方能满足我们的要求。
but I do not turn for protection to dreary cliches about respect of elders -- as if mere age were a reason for respect.
但我不会用应当尊重长者这一套陈词滥调来为我自己辨护，似乎年长就是受人尊敬的理由。