Polyphosphoric acid
[化] 多磷酸
🧩 词语组成解析
🗣️ 情景例句
When did you come here?
是什么时候来这儿的？
The healthful man can give counsel to the sick.
健康的人可以对生病的人提出忠告。
Acting on a sudden impulse, I collected several dozen, put them in a paper bag, and took them to Robert.
我一时冲动，逮了几十只，装进一只纸袋里，带着去找罗伯特。