Percarbonate
过碳酸钾; 过碳酸盐
🗣️ 情景例句
Pay more attention to the voice of youth.
多留意年轻人的意见。
What's wrong now?
现在又怎么了。
We're sorry, but we 've had a slight price increase here.
真抱歉，不过我们出只涨了一点点而已。