Fluorocarbons
(fluorocarbon 的复数) [建] 碳氟化合物
🗣️ 情景例句
He pulled him out of the water.
是他把你孩子从水 拉上来的。
We shall never have friends if we expect to find them without fault.
指望朋友无缺点，永远休想交朋友。
I entered the hotel manager's office and sat down.
我走进饭店经理的办公室，坐了下来。