Perfluorocarbon
全氟化碳
🗣️ 情景例句
But what do you care about?
但你关心什么呢？
Labour is the capital of our working men.
劳动力是劳动人民的资本。
Travellers on short trips to areas with water supplies of uncertain quality should avoid drinking tapwater, or untreated water from any other source.
短途旅行到水质不保险的地区时，应避免饮用水龙头的水或未经处理任何其他来源的水。