Polyfluorination
多氟化反应
🗣️ 情景例句
Why don't you want to play?
你为什么不玩？
Thank you for your inquiry. Please tell us the quantity you require so that we can work out the offers.
感谢贵方询价。请告诉我们贵方所需数量以便我方报价。
She started to run to the boat.
她拔腿就往小船跑去。