Persulphate
n. [化]过(二)硫酸盐
✅ 同义词
🗣️ 情景例句
And then he takes it back
然后 ，他就把它收回去
I was wondering if you'd let me stay with you for a few days.
不知道你能否让我在你这里住几天。
I do not want to make it a school for rich children only.
我不想把它办成专供有钱人家的儿童来上学的学校。