Polyphosphate
多磷酸盐
🗣️ 情景例句
It was my pleasure.
这是我的荣幸。
Once a knave,ever a knave.
一次成无赖，永远是无赖。
They all went up some narrow steps into a large room.
他们全都登上这些狭窄的台阶，接着进入一个大房间。