Fluochromate
氟基铬酸盐
🗣️ 情景例句
Let's talk business.
我们来谈谈正经事。
How much does packing take up of the total cost of the goods?
包装占货物总成本的百分比是多少？
You've done very well. It's a pity you missed the sports meeting last week.
你学得不错嘛。很可惜，你错过了上周的运动会。