Pervanadate
过钒酸盐
🗣️ 情景例句
Think about the word and use it, in your mind, in a sentence.
想想这个字，然后去用它，在脑子里，在句子里。
I hope you can pass the examinations.
我希望你的考试能通过。
Would you like some more?
你再来点吗？