Perphosphate
过磷酸盐
🗣️ 情景例句
How can you do business with the americans? You'll need to improve your English first.
你怎么能与美国人做生意？你得先提高自己的英文水平。
What's your nationality?Are you a Chinese?
你的国籍是什么？你是中国人?
That's the trouble, vicar,' answered Bill.
“问题就在这里，牧师，”比尔回答说。