Perfluorochemical
[机] 全氟化化合物
🗣️ 情景例句
A lot of people come to openings
许多人参加开幕仪式
Who keeps company with the wolf will learn to howl.
近朱者赤，近墨者黑。
After entering the narrow gap on the plateau, they climbed down the steep sides of the cave until they came to narrow corridor.
他们从高原上的窄缝进去，顺着笔直陡峭的洞壁往下爬。来到一条狭窄的走廊上。