Percarbonate
过碳酸钾; 过碳酸盐
🗣️ 情景例句
I'm doing it for you.
也是为你做的。
He is a fool who cannot be angry,but he is a wise man who will not.
不会发怒是蠢人，不愿发怒是聪明人。
planes, or land vehicles----for it is something in between a boat and an aircraft.
飞机，或是陆上交通工具，因为它是介于船和飞机之间。