Persulphates
(persulphate 的复数) n.[化]过(二)硫酸盐
🗣️ 情景例句
I'd like your help.
我要请你帮忙。
What is the way to the bank?
哪一个方向是去银行的？
We would be glad to start business with you.
我们很高兴能与贵公司建立贸易往来。