Perfluorocarbon
全氟化碳
🗣️ 情景例句
Learning to express onself well is an important part of education.
学会把意思表达清楚是受教育的一个重要方面。
Other buyers are satisfied with it, but we could delay it if you could pay 40 percent up front.
其他买主对这货物很满意，但如果你能先付40%货款，我们可以延迟交运。
When you type a letter, the writing appears on a screen in front of you and is recorded onto a computer disk.
当你打一封信时，字迹出现在你前面的屏幕上并顾在电脑的磁盘里。