Perphosphoric acid
[化] 过磷酸; 过二磷酸
🧩 词语组成解析
🗣️ 情景例句
I intend to major in economics in college.
我想在大学里主修经济学。
I have to become strong.
我必须庄敬自强。
It's between the post office and the hospital.
它就在邮电局和医院之间。