Persulphates
(persulphate 的复数) n.[化]过(二)硫酸盐
🗣️ 情景例句
It's getting late, and we have a bit of a drive.
已经晚了， 而我们还要开好一段路呢。
Mr. Wang is not in now.
王先生现在不在此地。
First of all, he wrote out a long list of all the foods which were forbidden.
首先，他开列了一张长长的单子，上面列了所有禁吃的食物。