Pentasulfide
五硫化物
🗣️ 情景例句
Really. I didn't like math.
真的。我不喜欢数学。
A barley-corn is better than a diamond to a cock.
对一只公鸡来说，一颗麦粒优于一颗钻石。
No, Mrs Brown. Your son's trouble is very common these days. It happens all the time. It comes and goes very quickly. He'll get well soon.
是的，布朗太太。你儿子的毛病现在是极常见的，经常有的。它来得快，去得也快。他不久就会好的。