Pervanadate
过钒酸盐
🗣️ 情景例句
Someone told me you're the computer expert around here. Weel, I have a question for you...
有人告诉我你在这里是计算机专家，我有个疑难想请教你。。。
Take a hair of the dog that bit you.
以毒攻毒。
What are you doing?
你在干什么？