Polyfluorination
多氟化反应
🗣️ 情景例句
Does the price include VAT?
这价钱是否包括增值锐在内？
I'm worried about the appearance of the floor.
我担心地板的外观。
Carlyle was entirely ignorant of what the bottle in his pocket contained,
卡莱尔不知道药瓶子里装的是什么药，