Quadrafos
[商]四磷酸钠
🗣️ 情景例句
Sure. Would you please sign your name on the back, sir, with your passport number?
每问题。先生，请您在支票背后签上名字和护照号码。
How many passengers were on the train?
在火车上有多少旅客？
What can I eat? asked Mrs Brown.
“吃什么才行呢？”布朗夫人问。