Persulphates
(persulphate 的复数) n.[化]过(二)硫酸盐
🗣️ 情景例句
Certainly. Hold on, please.
当然可以，请稍等。
Would you please open the door for me?
请你帮忙开个门好吗？
It may also be said that rational, industrious,useful.
也可以这样说，理智的、勤劳的、有用的。