Polonide
[化] 钋化物
🗣️ 情景例句
What kind of business do you run?
你在经营一家什么样的公司？
What do you like best, apples, pears, or bananas?
苹果，梨，香蕉，你最喜欢哪个？
You'd better take a hat.
你最好戴上帽子。