Polyphosphoric acid
[化] 多磷酸
🧩 词语组成解析
🗣️ 情景例句
OK. We'll walk back to your office with you.
好吧 ，我们陪你走回你的办公室去。
I will try, but no promises.
我会试试看，但是不敢保证。
It was spring,but the weather was awful.It rained all the time.
是春天，但天气太糟了。一直在下雨。