Polysulphide
n. [化]多硫化物
🗣️ 情景例句
Before you leave--do I look all right?
在你们离开之前， 告诉我， 我这样子可以吗？
He jests at scars, that never felt a wound.
富人不知穷人苦。
How much is the pen?
这支笔多少钱？