Pentasulfide
五硫化物
🗣️ 情景例句
I hope you don't mind my asking, but I'd like to know.
我希望你不介意我向你打听一下，我想知道。
Where do I pick up the ticket?
我什么地方拿机票？
I must go to the grocer's.We haven't got much tea or coffee, and we haven't got any sugar or jam.
我得去一下食品店。我们的茶叶和咖啡不多了，糖和果酱也没有了。